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'Vampire Diaries' spoilers: View photos!

<div class="meta "><span class="caption-text ">&#39;Memory Lane&#39; - Damon Makes A Dangerous Enemy - Stefan &#40;Paul Wesley&#41; takes drastic measures to find out the real reason Katherine &#40;Nina Dobrev&#41; has returned to Mystic Falls, and is shocked when she reveals new secrets about what really happened in 1864.  Damon &#40;Ian Somerhalder&#41; tries a new tactic to resolve his issues with Mason, &#40;guest star Taylor Kinney&#41;, but it proves costly.  Tyler &#40;Michael Trevino&#41; pushes Mason to tell him the truth about the Lockwoods. Finally, when Katherine delivers an ultimatum, Stefan and Elena &#40;Nina Dobrev&#41; are left with very few options.  Sara Canning, Candice Accola, Zach Roerig and Matt Davis also star.  Rob Hardy directed the episode written by Caroline Dries. (Bob Mahoney&#47;The CW)</span></div>
November 11, 2010 6:52:13 PM PST