Earthdivers (Earthdivers #12)

Emily's plan to infiltrate the Founding Fathers, influence monumental edits to the Declaration of Independence, and reverse the American-bred 21st-century apocalypse is off to a surprisingly smooth start after Benjamin Franklin himself takes her under his wing. But revolution is still brewing in the streets of Philadelphia, and when Emily catches wind of a royalist plot, she'll need to think on her feet to use it to her advantage before it hijacks her only opportunity to change the course of history and save the world. It's not too late to join or die!