So I was going through the forgotten tomb like you do, and I came across this woman. She was a fairy, her name was Madeline. I paid her gold and she healed my pets. Should I be concerned for them? More importantly, should I be concerned for her?

nah, she appears randomly in the exploration zones (i think primarily umbra forest zones, or maybe only umbra forest zones). i personally don't like her because sometimes i accidentally give her my gold when my pets don't need healing due to muscle memory.. same with the peddler dude that sells you his box.

Okay, that makes a little more sense. I was really confused because this is the first time I've seen her, and it was in a tomb, which led me to think that she might have been some sort of weird ghost that was trying to get me.