The Mistress and the Key

In 1752, Benjamin Franklin discovered electricity, which would soon become the most powerful tool in the American revolution, but while his many accomplishments have been lauded, his mysterious connection to Paul Revere and a cabal of powerful alchemists has been lost to history—​until now.
  
Card shark Hailey Gordon and ex-con Nick Patterson—after working to uncover one of the biggest secrets of the Revolutionary War alongside American history professor Adrian Jensen—now find themselves in Philadelphia, immersed in the history of Benjamin Franklin and Paul Revere. The Liberty Bell, Charles Willson Peale's Museum, the Tomb of The Unknown Revolutionary Soldier—all are connected to Franklin in amazing ways. The more they discover, the more incredible the information becomes. 

But the long-buried secrets Hailey and Nick are chasing have previously only been known by a select few, who would prefer to keep it that way. 

A woman known as The Heiress—part of a mysterious organization known as The Family—is one of these rare historians. After generations of members have failed before her, The Heiress has been tasked to finally unearth the alchemical secrets Revere and Franklin may have discovered during their lifetimes.

And she's not about to let Nick and Hailey get in her way. 
  
In this thrilling new novel from New York Times bestselling author Ben Mezrich, history is about to change forever.