[The ship gives a tiny shake, just as it would for a flood and the Admiral's voice can be heard from every room on board the ship.]
Passengers, we seem- [He doesn't get to finish his sentence. The words abruptly stop and the ship gives a great jolt, knocking things off the wall and pushing over furniture. There's no time to process this, though, as there's a great cracking sound and the barge changes....
...into a winter wonderland!
This is where your characters will end up. Consider this the beginning of the breach!]