19 - I Spy by Natalie Sumner Lincoln

Delve into a thrilling narrative set amidst the perilous times of war. I Spy unravels a German espionage plot with a mission to steal two invaluable American inventions critical for warfare. One, a revolutionary camera capable of capturing a complete map of the country from an airship. Two, an innovative process to create glass armor - a fusion of mica and glass that resists Mauser bullets. The story unfolds in the heart of Washington, D.C., where everyone has secrets to hide. Each chapter takes unexpected turns, culminating in a jaw-dropping finale. This summary is adapted from the Book Review Digest, v.12 (1916-1917).