"Nah," Tidus agrees, regarding where the train came from. He's keeping half an eye across the immediate expanse of the beach as he speaks for any wandering monsters, but from what shows off the light of the bonfires, the sea creature are being kept at bay at the farthest reaches, and the coast was still clear for them. "This train didn't look like it needed any portal. But I've heard other people talk about going to different worlds... and a lot gets lost to history. Who knows what we used to do in our worlds, one time?"

Spira had lost so much history, that the thought of a portal just sitting around... well, it wasn't seeming so inconceivable to Tidus. Nevertheless, a swab of dull red catches his eye just then emerging onto the shoreline a distance behind Ignis. Not close enough to get the sneak on the man, but--

"Six o'clock!" Meaning, behind. That's a closer problem for Ignis to deal with than Tidus, who's now watching the shoreline closer. Was a new wave of crabs coming?