cold, burning sensation

Exploration Stage: Pavilion of Providence
From: Herbert Danu
Description: If you can prove that you are not fairies, we will let you go and surrender. It's an unusual approach, but I guarantee your safety... if you're human. First, touch this cold iron gag.
Completed: Touching a shoe crocodile and not feeling anything? That's strange. According to legend, iron should burn fairies. Oh, well. You've passed the first test. But there are more trials to come!