It's all rather confusing, as Niall hasn't met anyone who calls himself "Loki" yet, but he commits all this to memory.

You never know when you might need it.

"Really? Can he become an animal at will, or can he become something other than animal when he changes shape?"

No idea why he asked about being able to turn oneself into inanimate objects - all the shapechanging Niall knows about is from human to animal.

"And what are the Valkyrie?" he asks. "Are they like the Cheysuli, but with no need of lir to help them with shapechanging?"