The Hebraic one adopted a haggard, suffering look and gazed at a point above their heads. 'Let me see the color of your money,' he said, in a voice that conveyed gentle regret, as if Isaac might have bought some prisms today, and instead would only get a dreary lesson in the unbelievable shabbiness of English coinage. Isaac reached into a pocket and wiggled his fingers to produce a metallic tromping noise that proved many coins were in there. Then he pulled out a handful and let the lens-grinder have a glimpse of a few coins, tarnished black. Daniel, so far, was startled by how good Isaac was at this kind of thing. On the other hand, he had made a business out of lending money to other students – maybe he had talent.