Thankfully forming ice letters isn't too strange to Inigo, so he doesn't have to get startled by the display. Instead he just stares at the letters and then at the train - waiting, like he's expecting the train to show some sort of reaction to all of it.

But a moment without any passes, then another moment..

.. and then the train suddenly takes off into the void again, causing Inigo's jaw to drop, his mouth hanging open in indignation.

"Hey, how rude is it to just ignore our call for help like that?!"