In vampire diaries season 2 (episode just shown in uk)?

...klaus is in alaric (or something along those lines!) and katherine has just been tricked by isobel to go to him (please dont divulge more if you've seen further than this!) so has klaus been in alaric for a while, my boyfriend is more behind than me and has just seen the one where he killed elijah and he said his eyes are changed and are really white and he thinks its odd (obviously i havent given anything away) what do you think? do you think klaus has been dorment in alaric for a while?