Introductory deal: Receive a Japan Adventure kit, passport, stickers and map free when you pay $3.45 shipping and join the Top Secret Adventures club from Highlights for Children. The kits are designed for children ages 8 to 12. Then: If you continue as a member, every five weeks the club will send a new Top Secret Adventures kit for $12.95 plus $3.45 shipping (total = $16.40). And: That's it. You can cancel your membership at any time. Shipping & handling: $3.45 per order. Credit card required? Yes (required to join). Sales tax: Illinois, Ohio, Pennsylvania, Wisconsin. Customer service: 800-316-4858.. Open to: U.S. residents, including its territories and APO/FPO.