According to Kristin, Tyler will soon learn his wayward Uncle Mason didn't just go back to Florida. A sun-kissed surfer girl comes to town looking for Mason, but finds Damon and Alaric instead. She's not all she appears to be though, and Damon finds out pretty quick she knows exactly what he is.
Kelly: I’m so mad that Mason’s dead on The Vampire Diaries—when will Tyler find out the truth and begin plotting his werewolfy revenge?
Tyler starts getting a clue about what really happened to Uncle Mason in episode 11, when a friend of Mason’s comes to town and reveals that Mason is not back in Florida like he’s supposed to be.