"Salt or anything with iron in it. If you can find their grave or whatever they're tied to, burn it so they can be put to rest." Evie replied, smiling proudly at her answer. She had dealt with a few ghosts when she was younger so that was easy for her. She did guess her best at the ones she wasn't sure about sometimes getting it right. 

"Are there ways to kill a demon? I know salt and traps prevent them from moving, holy water and symbols hurt them, and an exorcism sends them back to hell." She said, genuinely curious. If they were going up against one she wanted to be prepared. 

"If you're an angel like Cas, you can smite them. Seeing as how we're human, we have the demon blade." Sam replied, grabbing it to show her. 

"Cool." She said, fascinated by the dark blade with carved symbols.