Ogre Downstairs

The Ogre Downstairs - Diana Wynne Jones This is a story about some children who have to deal with the fact that their two sets of parents have married. They live in a too-small house, the father isn't used to children and the stresses are beginning to show. When two of the boys get chemistry sets things take a strange turn as the chemistry sets turn out to be magical. It's an interesting blend of magical and mundane and the children felt quite real. Fun and enjoyable. The beginning felt a little slow and almost lost me though but once I was a few chapters in things improved.