Mrs. Cooney, the school nurse, is so beautiful that A.J. has a crush on her--even though he suspects she might be an international spy!

Tortall's spymaster, George Cooper, cleans out his office and finds letters, notes, character profiles, family papers, and more that reveal the secrets of Tortall. Includes a timeline.

"Nathan Hale (the author's namesake) was America's first spy, a Revolutionary War hero who famously said "I only regret that I have but one life to lose for my country" before being hanged by the British. In Nathan Hale's Hazardous Tales, author Hale channels his historical döppelganger to present history's roughest, toughest, strangest stories. This book tackles the story of Nathan Hale himself, who was an officer for the American rebels in the...

While running a spy network from their elementary school, five unpopular misfits combine their enhanced abilities and use cutting-edge gadgetry to fight evil around the world.