The Agatha Oddly Casebook Collection Books 1-3

Agatha's been a detective for as long as she can remember. But can she crack the case in these three mysteries: The Secret Key, Murder at the Museum and The Silver Serpent? With access to a network of tunnels underneath London, she is certainly perfectly positioned to. Join her as she tries to save the City from some strange goings-on, investigates a murder and attempts to track down a mysterious disappearance at a famous art gallery...