Mystery of the Skinny Sophomore(2012)
(A book in the Dallas O'Neil and the Baker Street Sports Club series)
A novel by Jerry B Jenkins
The older sister of one of the members of the Baker Street gang has changed. She seems like a different person and it has affected her brother. He's upset and worried. He wants to know what has gotten into her. Not only is she not acting at all like herself, but she also seems to be wasting away. Always slim, now she's skin and bone. Can the Baker Street boys find out what's wrong? See how Dallas and his friends solve the mystery and try to live their lives of faith in a modern world.
Used availability for Jerry B Jenkins's Mystery of the Skinny Sophomore
September 1989 : USA Paperback
August 2012 : USA, Canada, UK Kindle edition