Have you ever been in a case of losing your dog ? Nate the great will show you how to deal case like losing your friend. he lost his friend sludge.The dog he found it wasn't sludge it was fang fang is a dog with his owner annie she is the one who lost fang.He can’t find sludge he panic a lot he called his mom. The machine picked up he told it what happened. I really liked this book. One reason is it has a little action in it. Another reason is that it has suspense . Will he find sludge? You should read this book.