Twelve Sharp by Janet Evanovich

Welcome to Trenton, New Jersey, where bounty hunter Stephanie Plum's life is about to implode in Janet Evanovich's wildest, hottest novel yet !
FIRST A STRANGER APPEARS

While chasing down the usual cast of miscreants and weirdos Stephanie discovers that a crazed woman is stalking her.
THEN THE STRANGER REVEALS HER SECRETS

The woman dresses in black, carries a 9mm Glock, and has a bad attitude and a mysterious connection to dark and dangerous Carlos Manoso …street name, Ranger.
NEXT, SOMEBODY DIES

The action turns deadly serious, and Stephanie goes from hunting skips to hunting a murderer.
SOON, THE CHASE IS ON

Ranger needs Stephanie for more reasons than he can say. And now, the two are working together to find a killer, rescue a missing child, and stop a lunatic from raising the body count. When Stephanie Plum and Ranger get too close for comfort, vice cop Joe Morelli (her on-again, off-again boyfriend) steps in.
Will the ticking clock stop at the stroke of twelve, or will a stranger in the wind find a way to stop Stephanie Plum…forever? Filled with Janet Evanovich's trademark action, nonstop adventure, and sharp humor, Twelve Sharp shows why her novels have been called "hot stuff" ( The New York Times ), and Evanovich herself "the master" ( San Francisco Examiner ).