And, by this time, Tina had a lead for him - it wasn't anything concrete, but it was a record of locations that the caravan had visited before. They didn't seem to have a cycle, but they did have locations they stopped at more often than others. Which, given when they tended to arrive, narrowed the list down to less than half-a-dozen likely locations in the first world - most of which Nyrissa knew well enough to take them to, though a couple were ones she was unfamiliar with.