Now in paperback, a second comic case to test the brains and bravery of the intrepid Wollstonecraft detectives--Ada Bryon Lovelace and Mary Shelley.

The Wollstonecraft Detective Agency was supposed to be a secret constabulary, but after the success of their first case, all of London knows that Lady Ada and Mary are the girls to go to if you have a problem.

Their latest case is a puzzler indeed: A dead father, a missing will, an escaped lunatic, and a hasty engagement. How does it all connect? With the help (and sometimes hindrance) of their sisters Jane and...

History, mystery, and science collide in a new series for middle-grade readers, perfect for fans of The Mysterious Benedict Society and Lemony Snicket

Jordan Stratford imagines an alternate 1826, where Ada Lovelace (the world's first computer programmer) and Mary Shelley (author of Frankenstein) meet as girls and form a secret detective agency

Lady Ada Byron, age eleven, is a genius. Isolated, awkward and a bit rude--but a genius. Mary Godwin, age fourteen, is a romantic. Adventurous, astute, and kind, Mary is to become Ada's...

Twelve-year-old Mary Hayes can't stand her orphanage for another night. But when an attempted escape through the stove pipe doesn't go quite as well as she'd hoped, Mary fears she'll be stuck in the Buffalo Asylum for Young Ladies forever.

The very next day, a mysterious woman named Madame Z appears at the orphanage requesting to adopt Mary, and the matron's all too happy to get the girl off her hands. Soon, Mary is fed a hearty meal, dressed in a clean, new nightgown and shown to a soft bed with blankets piled high. She can hardly believe she isn't dreaming

But when Mary begins to...