The first book in the bestselling fantasy series "The Power of Five" by Anthony Horowitz. The first episode of the "The Power of Five" series from the author of the bestselling "Alex Rider" series. Matt has always known that he has unusual powers. He was raised in foster families and is sent to Yorkshire as part of a rehabilitation program, where he suddenly finds himself amidst eerie events. Matt begins to investigate and uncovers a terrible secret – eight guardians protect the world from the Old Ones, beings that were banished long ago by five children. However, devil worshippers want to bring the Old Ones back.