Adonai ignored the lies that the Brownie was spouting. He honestly didn't care what she had to say to defend herself; but the fact that she could lie quick on the spot was only a plus for her in his eyes. If she accepted his proposal she may very well need to utilize her lying abilities to a greater extent than she has before. But money tended to get people to do things they normally wouldn't do.
"Hmm, I think I'd rather have the blade here," Adonai said, "To make sure you don't go elsewhere. The job of which I am speaking is the clandestine style of job. As I said, you're small and sneaky. I'm sure you have experience sneaking into places you're not wanted without anyone knowing. Have you ever considered capitalizing on this? Rather than, say, pranking poor old men, perhaps you sneak into a building, hide in the rafters, listen to what a bunch of rich and important people are saying, then come tell me what they said and, in return for your efforts, I provide you with your weight in copper or silver? Perhaps gold if sufficiently earned."
The carrot was dangled, so there was no reason to keep the knife out. He stood back up and the blade vanished into his cloak. "If that sounds interesting, come with me," he said, lowering his hand so she could jump onto it and climb up to his shoulder.