There he learns about the fractured five kingdoms that make up this secret world . . . and realizes he may be the only one who can save it.This action-packed page-turner is perfect for fans of the Spirit Animals and The School of Good and Evil series.

    Together, they are able to bring art to life and enter paintings at will. Their extraordinary abilities are highly sought after, particularly by a secret group who want to access the terrors called Hollow Earth. All the demons, devils, and evil creatures ever imagined are trapped for eternity in the world of Hollow Earth—trapped unless special powers release them.The twins flee from London to a remote island off the west coast of Scotland in hopes of escaping their pursuers and gaining the protection of their grandfather, who has powers of his own. But the villains will stop at nothing to find Hollow Earth and harness the powers within. With so much at stake, nowhere is safe—and survival might be a fantasy.