Whether Dresler and his bunch knew that half had been sent to her or not didn't matter. It would arouse no suspicions in their minds when they found she had it in her possession. And so, somehow or other, she would have to contrive to see the other piece for long enough to memorise it roughly. Presumably it would be as simple and crude as the half he had, and given a minute or so to study it in, she should be able to reproduce it sufficiently accurately for them to have something to go on.
One weak point lay in the fact that they might not let her see the other part. Another was the difficulty of her approaching them, so to speak, out of the blue. Why should she know anything about them at all? He did not even know if she and Barnet were acquaintances. Still those were minor difficulties:
