Ghost Hunters Adventure Club and the secret of the Grande Chateau

"Listen up, kid. My name is Dr. Cecil H.H. Mills. I'm the author of this book and many other ones that you might not have heard of. This book is about two idiot wannabe detective-types. Their names are J.J. and Valentine Watts, but I'm not sure if they're actually brothers or not. They make a friend; her name is Trudi de la Rosa. She's a wannabe detective-type too, but honestly, she's less of an idiot than the brothers. The three of them team up...