Seth got out of the ruins and Rim instantly jumped towards him. Rim probably sensed earlier that he was in danger but Uriel didn't urge Rim to come since it would be too late to join the fight. The entry point was miles and miles away from the boss fight.
"I see you've leveled up quite a lot. Your pet was kind of squirmy earlier. I bet he wanted to get in the ruins as well." Said Valhadr.
"Well, I cleared it. I need to clear another dungeon of some sort tomorrow. That might take longer than this one."
Aries then butted in saying, "I tried to look for entries to the ruins you entered earlier because Rim wanted to enter. We did enter for like 10 minutes? I spammed teleportation but I couldn't find you. All I found were dead remains and destroyed walls of an actual ruin. There were some dune wolves inside and lower undead monsters though." He added, "Valhadr kept on laughing and just said that we should go back."