Questing: A Guide to Creating Community Treasure Hunts by Delia Clark and Steven Glazer (other publications for Valley Quest)
A Treasure's Trove: A Fairy Tale about Real Treasure for Parents and Children of All Ages by Michael Stadther
Secrets of the Alchemist Dar: Collector's Hardcover Edition (A Treasure's Trove) by Michael Stadther
39 Clues Series by Various Authors
Treasure and Scavenger Hunts: How to Plan, Create, and Give Them! by Gordan Burgett