Spying is not a game... Fifteen-year-old Agatha is not just a descendant of Dr. Henry Jekyl. She's a spy-in-training with MI7, a covert faction of the British Secret Service consisting of monsters! When Agatha's Grandma Sara is kidnapped and held for ransom, Agatha and her teen counterparts -- Lily Guepard, a human/cheetah hybrid, and Gil, an heir of the Invisible Man -- are called into the field long before they're ready. Their mission taking them from London to Liverpool and back again, Agatha and team become embroiled in a dangerous heist, a deadly rescue plan, and an unexpected villain looking to settle deep-rooted scores both old and new. In Russ Colchamiro's espionage thriller Hyde and Seek: The Fury of the White Mask, Agatha is faced with reclaiming her own humanity -- unless her burgeoning inner monster claims her first.