This is the second book in the series of "haunted numbers" as I call it. You must have read the first book "Nr.14" to understand most of this book. ~~ Jack's parents felt like he hadn't been himself ever since that night when he came home late and asked about a stranger. They thought he needed a vocation. So when summer came they booked a hotel room for a few days. But for Jack it's far from an relaxing holiday.

This book one in the series of "haunted numbers" as I call it. ~~ They are on their way to a new neighbourhood. It seems good at first, but when they get there they get a warning not to go near the house on the end on the street. The brothers Jack and Finn don't plan on going there, but they somehow end up inside.