When Hart goes into Professor Kingsfield's bedroom, he picks up a book, and is rightly excited to find that is The Daughter of Time, published in 1951, and written by Josephine Tey (Elizaeth MacKinstosh, 1896 - 1952). This is about a Scotland Yard police inspector named Alan Grant, who, when stuck in hospital with a broken leg, investigates the deaths of the two Princes in the Tower, the nephews of King Richard III of England. The story favours the idea that perhaps King Richard did not kill his nephews, as some history and William Shakespeare suggest, but that he was the victim of Tudor propaganda. Richard was defeated and killed at the Battle of Bosworth Field on Monday the 22nd of August, 1485 (O.S.), and was succeeded by Henry Tudor, Earl of Richmond, who became King Henry VII, and changed the date of his reign to Sunday the 21st, so that he could claim that anyone opposing him at the battle was guilty of treason. Richard III's skeleton was found in a carpark in Leicester by the efforts of Philippa Gregory, MBE, and the Richard III Society, an organisation committed to clearing Richard's name.