OOC: Oh you'll see, you'll see, trust me, his experiments are quite a bit... different than you'd expect, really he just has to figure out the basics to be able to replicate a very, very crude version of it, all he has to do is make it bring them back.
IC: "Fine, the deal meets my expectations, I shall now run a few tests and extract samples." He said, extending his palm, a needle forming. "tell me, how are you with temporarily losing a limb? And if not that then loss of a finger or minor injury?" He asked in a monotone voice, his emotions stabilizing.