Introductory deal: Receive a mysteries book, audio CD, newsletter, "crime scene" photos, notepad and pencil, mini voice recorder disguised as a pack of gum, access to a members-only website, invisible ink pen and carry-all case for $4.95 plus $3.99 shipping (total = $8.94) when you join the U-Solve-It Mysteries club from Scholastic. The club is designed for children ages 9 to 11. Then: If you decide not to continue as a member, within seven days return everything but the carry-all case, which is yours to keep as a gift. If you continue as a member, each month you will receive a new book, photos, newsletter and gadget for $11.99 plus $3.99 shipping (total = $15.98). And: That's it. You may cancel at any time. Shipping & handling: $3.99 per shipment. Credit card required? Yes, or you may asked to be billed. Sales tax: Connecticut, Florida, Kentucky, Missouri, New Jersey, New York. Customer service: 800-724-6527 or email. Open to: U.S. residents, including its territories and APO/FPO.