The Sword Thief (The 39 Clues, #3)

Firefly & Fern Summary

The Sword Thief is the third thrilling installment in The 39 Clues series, where siblings Ian and Amy Cahill continue their globe-trotting quest to uncover their family's greatest secrets. Filled with puzzles, codes, and high-stakes adventure, this fast-paced mystery will keep young readers guessing while celebrating the power of teamwork and sibling bonds.