Books in the Tales from Dulaney Street series

This is the story of a young boy who, while celebrating his fifth birthday, ends up taking a trip into the unknown. Hes been told about a monster that lives in his house by his older brother but, in Olivers case, seeing is believing. The only problem is that what he sees is more terrifying than anything he could have imagined. A chance encounter will change his life forever as he discovers a new world where monsters live...