4.6 stars | 4,800+ reviews

Stop the Scroll. Start the Adventure.

A six week mystery that arrives in the mail, addressed to your child. It's designed to pull kids away from screens and into a world of top-secret clues, ancient maps, wax seals and "old school" adventure.

A six week, screen-free mystery that arrives in the mail, addressed to your child.

Personalized Magic: Kids receive dispatches written to them from the characters in the mystery.

Authentic Artifacts: Tactile clues and real evidence.

The Hero of Their Own Story: They don’t just read the story - they solve a mystery.

CHOOSE a mystery

CHOOSE a mystery

A Letter With Their Name On It

A character in the mystery writes to your child, by name. Each of the six installments brings new letters, clues and something to hold, personalized and assembled by hand. It's a tactile, physical experience that requires critical thinking, logic, and a curious mind. Kids will be practicing reading comprehension and deductive reasoning, but they’ll be having too much fun being a detective to notice.

Something to Hold. Something to Solve.

These aren't just letters. They are carefully crafted artifacts designed to feel real. When kids hold the "evidence" in their hands, they're living the story.

Read

Letters from pirates, knights and the spy school.

Crack

Secret codes, cipher wheels and ancient maps.

Look Closer

A necklace that is really a clue. Wax-sealed parchment missions.

Open

A wooden treasure chest. A safe disguised as a book.

Call

Real phone numbers and voicemails. A spy hotline for mission check-ins.

Six Installments.
One Keepsake.
No Subscription.

Each installment takes about 30 to 90 minutes, at your child's pace. Some kids work more quickly, other prefer to come back to a clue over a couple of days. They can play alone or with a partner, and siblings can share. Every mystery ends with a special keepsake, and it's one purchase, never a subscription.

✉️ Late or lost? We replace it, free.

A letter that gets lost in the mail is always replaced at no charge, and so is any item a child loses. Yes, even if the dog ate it.

CHOOSE a mystery

Don't take our word for it

Featured in New York Times Wirecutter. 
Rated ⭐⭐⭐⭐⭐  4.6 / 5 Stars from 4,800+ Verified Reviews.

Best Gifts for 10 Year-Olds, 2026

"I was impressed by the surprising, intricate storytelling, and by how deeply invested my kids became in their given missions."

Best Gifts for 10 Year-Olds, 2026

Choose the Perfect Mystery Adventure

One purchase, six installments, never a subscription. Every installment is addressed to your child.

Two ways to receive it

You get exactly the same personalized mystery no matter which delivery option you choose.

Send Weekly
Six installments, with a letter mailed every Tuesday. You pick the date the first one is mailed.

All-In-One-Box
All six installments shipped in one package.

Pace

A new letter each week

Their own pace, starting whenever they like

Tracking

Letter mail, so no tracking

Tracked, with express shipping available

Arrival

5-10 business days after the mailing date you choose

Usually 9 to 15 days after you order

Best for

Building anticipation, one mailbox moment at a time

Gifts with a date, faraway grandparents, and anyone who doesn't want to worry about mail delays

Send Weekly
Six installments, with a letter mailed every Tuesday. You pick the date the first one is mailed.

Pace

A new letter each week

Tracking

Letter mail, so no tracking

Arrival

5-10 business days after the mailing date you choose

Best for

Building anticipation, one mailbox moment at a time

All-In-One-Box
All six installments shipped in one package.

Pace

Their own pace, starting whenever they like

Tracking

Tracked, with express shipping available

Arrival

Usually 9 to 15 days after you order

Best for

Gifts with a date, faraway grandparents, and anyone who doesn't want to worry about mail delays

Treasure Hunt!

  • Age 6+ (Age 6-7 may need adult help)

  • Pirate themed

  • Individual or with a partner

  • From $109.00

Long-lost treasure, double-crossing pirates and a pirate ancestor who turns out to be from their own family. They'll get ancient maps and a real treasure chest at the end.

send this mystery

The Enchanted Slumber

  • Age 6+ (Age 6-7 may need adult help)

  • Fairy-tale themed

  • Individual or with a partner

  • From $114.00

A knight, a troll, a librarian, a dragon and your child team up to wake a princess who has slept for almost 700 years. Wax-sealed parchment missions and cipher-etched necklaces.

send this mystery

Spies, Lies & Serious Bad Guys

  • Age 9+

  • Espionage themed

  • Individual or with a partner

  • From $119.00

It starts with an acceptance letter to a top-secret spy school. Then comes the mission: find a missing spy and stop a villain. A spy hotline to call, gadgets and a safe disguised as a book.

send this mystery

The Case of the Missing Bigfoot

  • Age 9+

  • Detective themed

  • Individual or with a partner

  • From $119.00

A safe has been emptied at an old mansion not far from where you live. Who did it? A detective adventure packed with Bigfoot, Yeti and cryptid lore.

send this mystery

Escape the Master Loop

  • Age 12 + for kids to do on their own
    Age 9 + with adult help

  • Time travel themed

  • Perfect for a group or family

  • From $114.00

Letters from your future self about the messes you’ve made in the space-time continuum. Perfect for family game night or a group of kids.

send this mystery

The Perfect Gift for the Kid Who "Has Everything"

Whether they live across the street or across the country, we make gifting easy.

A Childhood Memory, Not Just a Toy: Give an experience that sticks with them long after the final clue is solved, not more clutter.

The Perfect Last Minute Gift: Buying last minute? You can download a printable note so they have something to open today while their mystery is on its way.

Easy Personalization: We address everything directly to the child. The look on their face when they see their name on a letter from a character is priceless.

CHOOSE a mystery

What age is this for?

It depends on the mystery. Treasure Hunt! and The Enchanted Slumber are for kids 6 and up. Younger kids (6 to 7) may need some grown-up help with the reading and puzzles. Spies, Lies & Serious Bad Guys and The Case of the Missing Bigfoot are for kids 9 and up. Escape the Master Loop is built for groups, so teens and adults can join in. For kids on their own Master Loop is for ages 12 and up, or 9 and up working with an adult. Not sure which mystery to pick? Try Help Me Choose a Mystery.

What exactly do I get in a mystery experience?

Six installments, each addressed to your child by name. Expect letters from story characters, tactile clues, ciphers, puzzles and objects, plus a special keepsake at the end. Depending on the mystery you could receive top secret dossiers, newspaper clippings, postcards, maps, keys, necklaces and so on. Everything is personalized and assembled by hand. The letters are written to kids from the characters, which means that kids are directly involved in the story.

Can siblings share a mystery?

Absolutely! Lots of kids like to work together to crack the case. Just keep in mind that there are one-of-a-kind objects that are part of each mystery and those will need to be shared.

How long does each installment take for the child to complete?

About 30 to 90 minutes, depending on the child. Kids work at very different speeds. Some work very quickly, others like to come back to a clue or puzzle over a few days. With the All-In-One Box they can take as long as they like and move on to the next clue whenever they are ready. With the Weekly Reveal there is a week between letters.

Which delivery style should I choose?

Each mystery has six installments. You get exactly the same personalized mystery no matter which delivery option you choose. With "Send Weekly" we mail one letter every Tuesday for six weeks, with no tracking. You pick the date we mail the first letter. With "All-In-One Box"  we send everything together in one tracked package, so you can do the mystery at your own pace. It is the better pick for a gift on a set date or if you don't want to worry about possible mail delays.

How long does shipping take?

All of our mysteries are personalized and assembled by hand, so it takes some time to prepare each experience. If you choose to have your letters mailed weekly, you pick the date for us to mail the first letter and it usually takes 5-10 business days for the first letter to arrive. And remember, the date you pick is the date we mail the first letter, not the date the letter arrives. The postal system can work in mysterious ways, so please be patient. 

If you choose to have all the installments in your mystery shipped "All-In-One-Box" you should receive your mystery 9-15 days after placing your order. For "All in One Box" orders we also offer an express shipping service for customers who want to receive their mystery more quickly.

If you need a gift today, you can download and print a gift note that lets a child know their mystery will start arriving soon.

What if a letter doesn't arrive, is lost or chewed up?

We replace it, free. If a letter gets lost in the mail (it happens), or your child misplaces an item (yes, even if the dog ate it), contact us and we will send a new one. Because our mysteries are personalized, we do not offer returns or refunds, but we always replace.

What if we're going on vacation?

A Mail Order Mystery is the perfect activity to do on a vacation, holiday with family or road trip. Just order "All-In-One Box" delivery and get it delivered to your home before you leave so that you can bring it with you.

Is this a subscription where I keep getting charged if I forget to cancel?

Absolutely not! All of our mystery experiences are one time purchases. You pay once for all six installments of each mystery. There is never any recurring billing.

Let customers speak for us

from 4804 reviews
Old school FUN

My daughter is 9! We have done 2 mysteries so far but plan to do them all and love it so much!!!! It’s one of those magical experiences! They have thought of EVERYTHING to the smallest of details. I recommended this whole heartedly! We have immense JOY with this!

Shamanie Frykman
Wonderful creative product!

I bought this mystery for my granddaughters and was so impressed by its uniqueness and creativity! I’m so happy with the product and the customer service is phenomal!

Anonymous
So realistic!

Wow, we were blown away by how much research and detail went into this treasure hunt. There were real phone numbers to call, and everything looked so authentic. Our son truly believed he was searching for a treasure!

Gabrielle Calder
Could Not Wait to Open 2nd Envelope

She was so excited she was shaking

Gloria Beckman
Exceeded high expectations!

9 and 11 year old siblings declared this the best gift ever! Encouraged collaborative, analog problem-solving… really high quality and worth the price.

Anonymous
Fantastic

So much fun! Really engaging for my kiddo, and it made her feel so special every time she received a letter! It seemed expensive at first, but after the experience, it was absolutely worth it!

Margaret Hill-Kipling
Spectacular!

We gave this to our 10 year old for his birthday, and it has far exceeded our expectations. The air of mystery in each letter is captivating, the level of detail in each letter feels so thoughtfully put together, the challenges/puzzles are just the right level of challenging. We decided to do the mystery as a family activity and it's offered such a fun way to bond and spend time together.

Leah Koenig
Best. Thing. Ever.

I ordered the spy game for my daughter and her friend for their birthday. Having both done and created a lot of mystery/puzzle/escape room-type games, this has been one of my favorite experiences ever. You better believe that every special occasion will be marked by a mail order mystery until we get through all of them

Lydia Given
So fun!

Kiddos loved it! And can’t wait to do an other one next summer! Great work. My son who’s 10 LOVES the gift in the final box. He wears it all the time and we’ve even gone Bigfoot searching in the woods around our house. Thanks for the summer memories you helped create!

Sara Savidant
Better than video games

My daughter enjoyed the Spies, Lies and Serious Bad Guys mystery over the summer. She knew when to expect the next letter and would run to the mailbox to check for it. She is a complete video game addict, but opening her envelope to solve puzzles took priority when they arrived. She was only frustrated by one envelope, and was so excited when the final letter arrived and she could solve the mystery. She loves the distraction safe book and carries it around with her sometimes.

Lisa De Golier
Our family LOVED this!

I ordered this for my 9 year old twins and I think I had as much fun with it as they did. Honestly, they suspected it was 'set up' pretty early on but that didn't take away from the excitement at all. We loved cracking codes and deciphering messages and the loot at the end was much cooler than I would have expected! Such a great product!

Joanna Rigby-Jones
LOVED LOVED LOVED IT

We had such a blast. My daughter was all into it and really felt like she was a spy. It was fun watching her get excited about the next box or letter she received. Highly recommend and let their imagination run wild. Our daughter did want to call the police a few times and was worried someone was after her but it was SO MUCH fun!

Anonymous
Perfect gift!

Absolutely amazing! My ten year old son LOVED it. The clues were so well done and all of the game pieces and accessories were so authentic looking. It seemed real! My son’s critical thinking skills were in full force in a fun and exciting way. As a mom and as a teacher, I would highly recommend!

Erika Napolitano
Amazing!

Loved this so much for my kiddos! It immediately got them using their brain in a new way and they got into the excitement of it right away. 100 % recommend!

Kyra Schultz
How to be an excellent Grandparent

We recently gifted our granddaughter with The Enchanted Slumber. Not only did she LOVE it, but so did her mother! I guess we are excellent parents, too!

Susan Norris

Give Them a Childhood Memory, Not Just a Toy.

In twenty years, they won’t remember the plastic gadget they got for their 9th birthday. They will remember the summer they spent tracking Bigfoot or the time they outsmarted a secret agent. You aren’t just sending them "mail" - you’re creating the spark of imagination that stays with a child forever.

Not sure which mystery? 
Help me choose.