Attica by Garry Kilworth

Attica is a book about growing up and discovering yourself.
The story starts with Chloe, Alex and their new half brother Jordy, the three of them move to a new house with their parents. The weird man that rented them half of the house he lives in sends them in an adventure to look for an old singing clock, from an old lover, that's lost in the attic. When the three of them begin their journey they come across a whole new world, Attica. With its own weird residents and rules, this world will help them appreciate all they have and learn to get along with each other.
Throughout the whole journey the kids have to keep their hearts in the right place or else they're going to end up trapped inside Attica for ever.

Every kid once had been intrigued by the mysteries of an attic and Garry Kilwroth brings them all to life with his beautyful descriptions and unstoppable imagination.