Introduction: Ruthless (Pretty Little Liars #10) For years scandal has rocked Rosewood, Pennsylvania鈥攁nd high school seniors Aria, Emily, Hanna, and Spencer have always been at the center of the drama. They鈥檝e lost friends, been targeted by a ruthless stalker named A, and narrowly escaped death. And it鈥檚 not over yet. Aria鈥檚 love life is on the fritz. Emily鈥檚 exploring her wild side. Hanna鈥檚 kissing the enemy. And someone from Spencer鈥檚 past鈥攕omeone she never thought she鈥檇 see again鈥攊s back to haunt her. But none of that compares to what happened last spring break. It鈥檚 their darkest secret yet and guess who found out? Now A is determined to make them pay for their crime, and the only thing scarier than A is the fear that maybe, just maybe, they deserve what鈥檚 coming to them....