OK it's obvious there's a way to get the card out without using a method of throwing so let's go look for useful stuff in the Z-hatch room.

Agreed. Screw the Z-hatch plate back in for now, and perhaps examine the room beyond again. Try closing the door behind you as suggested earlier.

Wisely giving up on this poorly-imagined line of thought, Ruby instead descends back to explore the lower levels more, now armed with a heftier inventory.
She waves to Tom, whom she is happy to see is still alive.

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