Notices svartalf

“Heya, Hobbit,” I told her, and gave them my most reassuring smile. “Uh. How come you guys are up on the table?”
“Because they keep trying to come through the floor and get us!” Maggie said, her voice wavery with fright.
Just then, Mouse whirled his entire body around, his grey mane flying. Maybe three feet to one side of the table, the stone floor suddenly rippled and a svartalf began earthwalking up out of the ground.
Mouse rushed over to the intruder, rose on his hind legs at the last second, and then plunged down onto his front paws, directly onto the inbound svartalf, letting out a dishes-rattling sound that could only technically have been described as a bark. It was more of an explosive roar, and flickering blue sparks leapt from his mane as he struck, even as a wave of supernatural energy washed through the room like a burst of spectral lightning. There was just enough time to see the svartalf flinch, and then suddenly the floor was the floor again, and Mouse had resumed his protective pacing around the table.
“Like that,” Maggie said. “We didn’t even break any rules at all. Get ’em, Mouse!”


Peace Talks Chapter 7, Page 64-65