IN THE FLOCK OF FURY, Billy Hooten learns the strange—and horrifying—truth behind Monstros City’s woes. It turns out that all the supervillains Billy has encountered are under the hire of a super-SUPERvillain called the Monarch. The Monarch hates Billy—and with good reason. But when Billy learns the Monarch’s shocking true identity, will he be able to fight back against his most powerful foe yet?

Upon discovering that all of the supervillains threatening Monstros City are under the control of the archvillain Monarch, Billy Hooten vows to take on this new enemy.

Billy "Owlboy" Hooten learns that all the villains that have attacked Monstros City were sent by one evil mastermind known as the Monarch, but when Billy learns a secret about the Monarch's true identity, it will be all the more difficult to fight against him.