My explosive diary Eliza book

Her father is an inventor. He makes gadgets for spies, and Eliza is his unofficial assistant . . . very

unofficial.

Eliza knows that if she can just build that one thing every secret agent needs, she can be a full-fledged spy too, but somehow her inventions keep going wrong. And when her father loses a top secret roll of film, Eliza realizes that she might have accidentally given it to the class bully, who is using it as a hair bow! Now it's up to Eliza; her best friend (well, dog), Einstein; and her own brand-new assistant (and friend) Amy to get it back before it falls into enemy hands.