The Treasure Pack: The Polybius Square Mystery Letter

By Lord and Suzanne Lord

When Grandma and Poppa send their granddaughter a letter with a secret code, a fun mystery begins Using a Polybius Square, she and her dad work together to solve the puzzle while their dogs, Rissa and Toby Tanner, happily join the adventure. Where will the hidden message lead them? Only the code can tell

• Format: Paperback
• Language: English
• ISBN: B0GZKHL3RB
• ISBN13: 9798995024521
• Release Date: April 2026
• Publisher: Treasure Pack Publishing
• Length: 32 Pages
• Weight: 0.16 lbs.
• Dimensions: 0.1" x 6.0" x 9.0"
• Age Range: 4 to 8 years
• Grade Range: Preschool to Grade 3