[ His other hand lifts, palm upward, a universal sign for pause. ] Nay. Should the blood be tainted, I shall decide then. [ His reasons for so, he doesn't give, but the heavy, thoughtful set of his brow may give away that there are other factors to consider. ] ...Nonetheless, you are correct: it has been days, and the sample is set. I know not how much you may gleam, only that you attempt.