[@Crimson Raven]Dome is completely made of shadow now, so that's invalid, but fair enough. Though I counter by saying that given what Ferrin has seen of Nidhogg's abilities, he makes a lot of holes in the ground when he summons up his bone spikes.

[@Zarkun]Didn't know about the magic senses, in which case, makes more than enough sense that he'd know that two people are down there, and if Ferrin gives his two cents on the matter, he can piece enough together to see that he needs to intervene. Still will take time to get there(a mile or 3/4 of a mile seem like a good estimate) unless drastic action is taken.