IK37

Oobleck's eyes took in the interior of the train as he was led through it, White Fang behind with weapons drawn to keep him moving forward, and Roman ahead, leading the small group. They were in the tunnels connecting Mountain Glenn to Vale, the place where it had all begun.

[...]

Roman wasn't so sure, nor so confident in the brute's skills. "That would be nice. Anyway, back up from that door please. I'm about to give you a lesson how to deal with sensitive electrical equipment."

His cane came up.

The metal door exploded away, propelled down the car ahead until it crashed into a container and came to rest with an ear-splitting clanging sound. The wires that had once run a current through it hung from the ceiling.

"Mind your head," Roman said, hauling Oobleck in front of him and pushing him through the door first. "Looks like your little protégé is making daddy proud," he hissed. "Talk about an annoying brat. VSS sure knows how to pick them."

[...]

The brat had to be up there or it wouldn't have made sense to booby-trap the windows. An explosion of dust carved a hole in the thin sheet-metal ceiling, exposing rushing wind and wires above. Roman fired three more shots for good measure, each impacting in a different spot and tearing through the roof.