Madame X and the World Beneath (Madame X Mysteries)

When a ball drops down a sewer grate, the lives of three kids are changed forever!

Precocious ten-year-old Susan Jones--otherwise known as famous detective Madame X--has never met a case she couldn't crack...

Until the morning she wakes to find her celebrity marine biologist parents missing.

With her best friend Johnny and his little brother by her side, Susan sets out on an adventure that leads to the discovery of underground land hidden beneath their city, where elf-like creatures called Thingamabobs are building a parallel world while depleting natural resources and threatening life as the kids know it.

As the trio works to save Susan's parents and their city, Susan learns about the bonds of friendship and the power of family, how being extraordinary has nothing to do with fame... and where socks really go when they get lost in the dryer!

Madame X and the World Beneath is a funny and quirky middle grade novel destined to embolden the imagination, spark laughter, and inspire young people to own their potential to do good in the world.