Mystery Ryders #4: The Mystery of the Missing Mystery by Criswell & Carli Freeman(New, 2018, Pbk, 125 pgs)

New. ISBN 9781937782139

First, May Ryder's father gives the original version of his first big mystery novel to the Spring Valley Library. Then, somebody steals it! Can May Ryder and her brother Hut find the crook before it's too late?