I just realized this!!!!

I am rereading Mistborn:The hero of ages.(P.243 Mass market print.) Vin is in Fadrex city and she's trying to find Hoid after speaking with Slowswift and she is about to talk with Hoid and then she gets a feeling that something's wrong and so she leaves.

SPOILER....

Ruin is connected to anyone with Hemalurgy and Vin has an earring that is a small Hemalurgic spike. I just realized that Ruin knows that Hoid is there and makes Vin go away from someone who could interrupt It's plans. My mind is now rethinking this entire book.😵‍💫😵‍💫🤯😂