100 word challenge by Ian

My class was reading a book about A kid who gets trapped at this house and there is this wall that everytime someone tries to walk through it they magically walk back into the house.  The book is called Thief of Always.  Only way he can get through is by using a cat named blue cat.  He can do it because he has a great sense of direction and smell.  After escaping the house he finds out that his parents aged 31 years but he only stayed at the house for 31 days.  His parents have changed a lot.