She was never meant to be sent into the strange parallel world known as Earth . . . but now, trapped inside the mind of a teenager like herself, she must find a way to save it from destruction.

For years, Liothel has waited in vain for her powers to manifest themselves, so that she can become a full-blown Warder, defender of the realm of Mykia from the mind-controlling spirit creatures known as soulworms. But when a soulworm escapes from the Warden's citadel through a magical portal into the parallel world of Earth, it is her spirit that, entirely by accident, is sent in pursuit.

She finds herself, a helpless, unsuspected observer, in the mind of Maribeth, a teenage girl in the small Canadian prairie city of Weyburn, Saskatchewan, in 1984-and discovers the soulworm has possessed Maribeth's best friend, Christine.

Somehow, she must find a way to save Earth from the plague of death and destruction the soulworm and its offspring will release if allowed to spread across the unprotected planet. Only she knows the danger-and only she can stop it.