The Mystery of the Fires - Edith LAVELL

In the second book of the Mary Louise Gay mysteries, Mary Lou and her best friend Jane are thrilled to be spending a whole month of their summer together at Shady Nook. But when suspicious fires threaten their relaxing holiday, they jump into their sleuthing ways to find the culprit. With so many interesting residents in this small town, they have their work cut out for them! - Summary by Cari Shorrock