He would find an opportunity to test the Innkeeper's business card on someone inconspicuous and test out its abilities and limitations. For now, however, he had another item he wanted to try.
He picked up the letter opener and, without waiting for the dramatic build up, used it to open the epistle. The wax seal easily came off, and the envelope unfurled on its own, revealing a single page that automatically began to hover in the air.
Due to the Universal Language converter that Lex had received he was able to pretty much read and write every language he ever encountered quite easily. In fact, it had been the reason he was able to communicate with the Kraven.