Two adventure-loving, gadget-obsessed penguins dream of joining the FBI (Frosty Bureau of Investigation) in this hilarious illustrated chapter book series.

Jackson dreams of being a secret agent like his Uncle Bryn, who works for the Frosty Bureau of Investigation. Jackson and his inventor best friend Quigley might officially be too young to join the FBI, but they aren't going to let that stop them! They just need to come up with the right plan to prove that they are worthy.

But when one of Q's inventions goes dangerously wrong, Jackson suddenly finds himself dropped right in the middle off an FBI stakeout. There's fishy business afoot at the city's aquarium; rare fish are vanishing and not even the FBI can work out what's going on. It's up to Jackson and Quigley to solve the crime!

"Penguin details and humor by Hay build the world alongside cartoon illustrations by Jagucki. A quick pace, an engaging mystery, and attempted inventions―a pair of invisibility suits made of sardines that uses 'the same scientific principles' as the fish―will keep readers hooked on this series opener."― Publishers Weekly