The Mystery of the Fires (The Mary Louise Gay Series, Book 2)

250 pp. When a series of strange fires breaks out at the summer resort where she and her friend Jane Patterson are vacationing, Mary Lou decides to catch the fire-bug. But each new blaze furnishes different clues and points to another person as the culprit. Is the young architect guilty? The hotel-keeper? Perhaps the queer girl who roams through the woods is responsible, or some neighbor. No one dares leave his cottage for long, fearing that he might find only charred ruins on his return.