Assassin (n.) - Cold hearted murderer and unable to love. See Sierra Lowell for details. Teen assassin Sierra Lowell had a care-free life. No worries - until she meets luscious Chase Welsh, who is a Mafia and her next target. But, slowly, her worries start to build as he begins to seduce her and swears to claim her heart as his. But then she meets his brother, Daniel, who hates her guts. Now she struggles with the first type of emotion she's had in years - love. Can she love them when they are probably as cold-hearted as her?