Used book – Silver Child, Cliff McNish, Geoff Taylor, Bruno Krebs

What mysterious force inexorably drives children to the ominous Coldharbour landfill? Thomas, Helen the telepath, Walter the giant, and twins Freda and Emily are searching for the silver child. Only he can protect them. Linked by their strange powers, the six of them are destined to fight a world-devouring monster: the Roaring One.