Hardy Boys:The missing mitt

I read a book on the Hardy boys about a missing autographed baseball mitt Joe and his brother Frank(a year older) solve.They both play in a little league final but their friend loses an autographed baseball mitt and he can't play without it.First they suspect a player from the other team but he didn't do it.The coach sends both of them out of the game and their team starts to lose.They found out it was actually done by a dog familiar to them.This book was really engrossing with a lot of twists and turns which would pop out at an unexpected time.I want other books also to have this splendid feature which will catch the reader's interest easily.I'd give it a 3 with all the necessary things but only missing out it was a little thin.It could have got a better rating if it was a little long.I love these type of appealing mysteries!