Alison Prince 
The Lost King [EPUB ebook] 
Richard III and the Princes in the Tower

Edward IV has died, leaving his 12-year-old son as king. But England has been torn apart by the Wars of the Roses. Nobody wants a boy-king. Soon the boy»s uncle Richard III is on the throne — but Henry Tudor is challenging him for the crown. Henry and Richard have one thing in common: they need the young Edward V and his little brother out of the way. The two boys are sent to the Tower of London for safety. They are never seen again…
A fascinating look at the brief reign of Richard III, told through the eyes of the princes» nursemaid. What really happened to the princes in the Tower? Was Richard responsible — or has he been wrongly accused for centuries?