Meet thirteen-year-old Agatha Oddly - a bold, determined heroine, and the star of a stylish new detective series.

A third mystery for thirteen-year-old Agatha Oddly - a bold, determined heroine, and the star of this stylish new detective series. As the youngest and newest recruit to the gatekeeper's guild, Agatha Oddlow know she's got a lot to prove - not least because her mother was such an important member of the secret society. So, when an assistant at the National Gallery goes missing, Agatha begins investigating. Soon she uncovers a plot bigger than she could ever have imagined. As Agatha delves deeper and deeper into the mystery, she's not sure she'll ever get to the...

A second mystery for thirteen-year-old Agatha Oddly - a bold, determined heroine, and the star of this stylish new detective series. Agatha Oddlow's set to become the youngest member of the Gatekeepers' Guild, but before that, she's got a mystery to solve! There's been a murder at the British Museum and, although the police are investigating, Agatha suspects that they're missing a wider plot going on below London - a plot involving a disused Tube station, a huge fireworks display, and five thousand tonnes of gold bullion...