The disguises had two implications. The first was simple: somewhere these two elves were important people, and their faces were well-known. At the very least, one of the runners might recognize one or both of them. The second was more disquieting: the magician who cast the disguise spell was concerned about conserving power while protecting the identity of these important people. If that magician was here for the run, the magic man seemed to be expecting to need all his juice, suggesting that the runners might be facing a serious magical threat. And if the magician wasn't here, that meant no magical support, which was its own problem.