Silent Crime: Book one in Silent Crime series

Christina is a deaf girl who lives in Boston. She is a waitress and likes to gamble. She reads lips to play poker and more.
To play big she borrows money from a loan shark and loses it all.
Eric and Natalie are two armed robbers. At a diner, where Christina works, they discuss their plan to pull a heist at a Jewelry store. They think no one can hear them.
Desperate to pay back the loan shark, Christina decides to do the unthinkable. She needs guns, an accomplice, and a plan!