Mirror — Graham Masterton

It is said that a mirror can trap a person's soul...

Martin Williams is a broke, two-bit screenwriter living in Hollywood, but when he finds the very mirror that once hung in the house of a murdered 1930s child star, he happily spends all he has on it. He has long obsessed over the tragic story of Boofuls, a beautiful and successful actor who was slaughtered and dismembered by his grandmother.

However, he soon discovers that this dream buy is in fact a living nightmare; the mirror was not only in Boofuls house, but witness to the death of this blond-haired and angelic child, which in turn has created a horrific and devastating portal to a hellish parallel universe. So when Martin's landlord loses his grandson it is soon apparent that the mirror is responsible. But if a little boy has gone into the mirror, what on earth is going to come out?