If I recall, the decision was to do this in full view of an APC... ANYWAY
Two blenders drop from the ceiling and slam into the ground, shattering the tiles as they land and blocking your path to the door. Well, not really blocking. They're just blenders.
You step over the blenders and push on one of the large doors, more brilliant, white light streaming into the room as it opens. Your vision clears and you step outside.
"Bugger it," mutters the wizard, frowning at the blenders, "Wrong spell."
You find yourself outside, breathing in the fresh air for the first time in what feels like four years... Looking ahead, you see nothing but green, rolling hills extending way into the distance. Eventually, they vanish into the dark treeline of a far off forest. Behind the forest, an enormous mountain thrusts into the sky, it's frosty peak piercing into the clouds. It's a long way off, but you can just about make out a [blank] about half way up.
(It's miles away, so think big)