John Barrowman

Possessing extraordinary powers, including the ability to bring artwork to life, twelve-year-old twins Matt and Emily are sought by villains trying to access the terrors of Hollow Earth, a place where demons and mythological beasts lie trapped for eternity.

"Twins Matt and Em are animare. They have the ability to bring art to life, but someone wants to use their power to unleash demons from Hollow Earth where they are locked away. A journey through time will be necessary if Matt and Em are to stop this plot"--