After graduating high school Abby returns to Harmony Springs, her spiritual home. She plans to reconnect with friends, take one college class over the summer-and of course resume her magical studies.

But life in central Florida is not as peaceful as she hoped. Nightmares and visions torment her: a weird castle, an armored ghost, a giant white frog devouring people. When a girl is murdered on campus and a picture of the same white frog found beside the body, Abby knows it's not just her problem, but the world's. An evil entity is loose, fed by occult forces, spreading rage and hate.

Abby's guides say it's her duty to fight this monster. But can she discover the power to banish the white frog and its master? Or will she become their next victim?

Ghosts of Lock Tower is the third book of The Abby Renshaw Supernatural Mysteries. If you like tales of ghosts, psychic mystery, and magic, you will love this series.