"Should have thought of that before asking for him," Childermass says so very matter-of-factly. Of course, him talking from behind the dog and a version of 'Childermass' talking from under that same dog... confuses the dog.

Baker will move his paw as he's shoved at, twisting partway around to look back at the real Childermass with ears perked. One Childermass there. He looks down again. He may not be standing on Lambert anymore, but he is standing over him, effectively pinning the witcher where he is. Second Childermass down there.

Yeah, Baker just whines, puzzled until he leans down again to shove his nose in Lambert's face and sniff.