Kadaj's appearance in the labs hadn't been much of a surprise, although his offering a deal had been. Orochimaru accepted it, with a slight smirk, and then when Kadaj had made further stipulations had agreed to that as well.

The boy was up to something, and Orochimaru was in the mood to indulge him. He'd become very self assured, lately, over-confident, even, with some of the other members, and Orochimaru was perfectly placed to bring him crashing back to earth.

It would be helpful in the long run, as well as the short run. Breaking that confidence again would make him easier to work.

He didn't make much use of the training facility, personally; he had his own facilities, better suited to the sort of abilities he preferred to encourage, but he had been there before. It was a large, open space, and probably made Kadaj feel better about being in his presence.

"So, Kadaj," he said, saying the name as if caressing it, "why don't we begin?"