The_vampire_diares_2x07 -

Bonnie casts a spell on a room to trap Katherine inside with the Salvatore brothers.

Katherine reveals she has a witch of her own, Lucy Bennett (Bonnie's cousin), who has magically linked Katherine to Elena. This means any physical harm inflicted on Katherine—like being staked—is simultaneously felt by Elena. The_vampire_diares_2x07

She compels Matt to pick a fight with Tyler, intending for Tyler to kill him. Bonnie casts a spell on a room to

While Caroline manages to knock Matt out to stop the fight, Katherine’s backup plan succeeds when a girl named Sarah (also compelled) attacks Tyler with a letter opener. In self-defense, Tyler accidentally kills Sarah, officially . The Final Twist She compels Matt to pick a fight with

Just as the characters—and the audience—think the danger has passed, the episode ends on a massive cliffhanger:

A major subplot involves Katherine's plan to trigger Tyler Lockwood's werewolf curse.