Keltham takes the five torn pages out of his shirt, from five different phantom library books in five different languages.
He may need to flip through the whole books to find words to analyze. But Keltham is also hoping that he can just use the pages to anchor that language in his mind, and Tongues will give him the rest. It will not make him as fluent a speaker as Share Language, Keltham doesn't think; Carissa's Baseline did not sound right, did not sound native, when she spoke to him using Tongues.
- as the very first thing Carissa did, before she had any idea at all who Keltham was, before she knew he was not of Golarion, when for all she knew he had no value to him. If showing him the capability of Tongues was a terrible idea for the Conspiracy, good luck hiding it from him then, Conspiracy Carissa.