Audrey Willow had just returned to London after traveling a bit to become a photographer and had a dream of wanting to become an artist and a detective as well, she came to visit the Flavershams for Olivia's 8th birthday. She had been good friends with them for a long time and also since she's Olivia's babysitter too, but then things go horribly wrong when Hiram Flaversham was kidnapped by a bat with a peg leg. Now Olivia and Audrey are searching to find Basil of Baker Street, a world-famous detective with the help of a retired army surgeon named Dawson. Will they be able to find and rescue Olivia's father and what will happen when Audrey meets Basil as she will start developing some strange feelings for the world-famous detective?