The Doctor and Donna meet Agatha Christie at a manor owned by Lady Eddison. When Agatha Christie goes missing and a body turns up in the library, the adventure turns into a pulp sci-fiction murder mystery, with a murder, a jewel thief and a wasp alien. Can they solve the mystery?moreless
The Duke of Holdernesse needs Holmes's help when his son, Lord Arthur Saltire, is kidnapped from the Priory School. Holmes finds the connection between an old mystery and a teacher who has also gone missing.