Something I don't get.

[JNottle]

Why didn't Lana question how Martha had the dagger and how she knew what to do with it and who to do it to?

[Chloe_is_my_Hero]

Maybe in the hype of the world ending, Lana just didn't have the time to put two and two together. Or maybe she assumed that since she was Clark's mom that Clark would have told her about everything. Or...maybe it's a pot hole.