Everyone knows there are rules to time travel. Don’t change the past. Don’t leave anything behind. Don’t bring anything back with you. But what happens if you break those rules? You will soon find out. You are about to receive an urgent message from your future self: you have caused some serious mishaps in the time travel universe. You must work together - by which we mean future you and present you - to fix your mistakes. And don’t let the time police catch on! There are only so many stern warnings they will issue before they confiscate your time pod and leave you stranded in whatever year you happen to be in.
An excellent “family” mystery, and great for kids age 9 to 109.
Mail Order Mysteries are not for children under three. Small parts could present a choking hazard.