Here are some pictures of the "weird" monster people talked about lately at Deep Beneath Gundabad:


They were 3 oversized cave claws that slept together and their sleeping positions made people think it was a giant and strange creature. You can see them in chapter 10.3 of the Durin epic quests. However, you need to travel to the end of the cave, which is very far from Durin.

I had been so excited to see the monster but it turned out they were just lazy cave claws. I had hoped to see the mother of the Watcher or some sort of new monster.