Rate: 10/10
This is a book about four kids in a team called the ghost squad. They take mysterious cases, like detectives. In this book somebody called and said they needed help, the guy was in trouble. When he was about to tell the address on where he is, he suddenly hung up. Later, they are trying to find out who the guy is. Then an adventure begins on finding the missing scientist and who's behind it.
I rate this 10/10 because I think that it's really cool how they can track down the victim's location and who is the victim. My favorite and funny part was when a huge spider was chasing Tubby and Tubby was running and shouting like crazy, since he's afraid of spiders.