The case of the smiling shark (1st Aladdin Paperbacks ed.)

There can be only three in the Freaky Joe Club
Those are the rules, set down by Freaky Joe himself in the big red book, slightly chewed on one corner and wrapped in a locked bicycle chain. The newest chapter of the Freaky Joe club consists of Conor, Timmy, and Jack, and their mission is to solve crimes and fight evil in Ship's Cove, Texas -- if they can only convince anyone that there is evil in Ship's cove.
In their latest case, the freaky Joe Club has to found out who wants to keep the Ship's Cove Octopi's from winning a charity swimathon. What happened to the Octopi's life-size cutout of Sam Houston? Who could have taken it except their archrivals the Sylvan Glen Sharks.? How can you compete against Sharks when you have a really stupid theme song? And most of all,...
Who is Freaky Joe?