The gatekeepers

As 14-year-old telepathic twins struggle to escape the clutches of the Nightrise Corporation, one of them travels through dreams to a time when the evil Old Ones ruled and learns the role that he, his brother, and three other Gatekeepers must play to keep the world safe from the Old Ones' return.

Having locked the Raven's gate, fourteen-year-old Matt travels to Peru where he meets the second of the five gatekeeprs and works with him to try to stop the opening of a second gate somehow related to the Nazca Lines.