system
Given the following post, respond as if you're commenting on Reddit:
human
[General] What is the creepiest story arc in a super heroes comic you know about?
gpt
The Sandman: 24 Hour Diner (Dr. Destiny). No question. The arc with the serial killer convention was pretty rough too.

The "Death of the Family" arc in Batman had it's moments, mostly thanks to the grotesque Joker design and some really gross implications that (fortunately) didn't come to pass.

"The Wolves of St. August" from Hellboy was a good one. "Crooked Man" too. Hellboy has always been a horror-themed setting but those stood out to me.