Gail Blasser Riley 
Tower of London [PDF ebook] 

In Tower of London: England’s Ghostly Palace, young readers will meet William the Conquerer, who built this mighty cluster of stone buildings on the Thames River nearly 1, 000 years ago to serve as a fortress, palace–and even a prison. Children will learn about the many famous people who were imprisoned in the Tower, and perhaps bump into a ghost or two still roaming about the dark passageways. Full-color photographs, map, timeline, diagram, and a gripping narrative will entertain and inform students.