Bracegirdle, P.J. (2008). Fiendish Deeds.* (The Joy of Spooking, bk.1) Grades 4-7.
Eleven-year-old Joy Wells loves to read horror stories. When she comes across a book of scary tales by E.A. Peugeot, Joy believes the similarities between the swamp in her town of Spooking and that in the story "The Bawl of the Bog Fiend" are more than just a coincidence. She also learns that the same bog is going to be destroyed in order to make room for a water park!
As Joy sets out to find the truth behind the story and ventures into the bog with her less than enthusiastic brother, Byron, she hopes to find evidence of mysterious animals or plants so that she can prevent the waterpark from being built. Will she find the bog fiend or some other horrible creature lurking in the swamp? You'll have to read this book to find out.
*Request through interlibrary loan.