Lost Boy — Linda Newbery

New house, new school, new friendsâ€"but Matt Lanchester knows it won't all be that easy when he moves to the town of Hay-on-Wye. Almost as soon as he arrives, he is drawn into a mystery when he sees a roadside memorial marked by a little wooden cross with the initials M.L. carved into it. His initials! Then he meets Robbo and Tig and Old Wil Jones and his wife, Gwynnie. There's history here and a well-kept village secretâ€"and Matt is desperate to find out more.