<Note added by crawler Milk, 6th Edition>
Even though you can sometimes move the platforms upon which the stairwells sit, you cannot put the exit portal into your inventory. You can’t bring a stairwell into your saferoom. I watched one get hit by an Utter Annihilation wand, and it remained unscathed. I believe that means they are indestructible.
<Note added by crawler Herot, 16th Edition>
Milk is correct here about the stairwells. It states in the rules manual that while stairwells may be gated until certain conditions are met, the stairwells themselves are not allowed to be removed from the playing field.
<Note added by crawler Rosetta, 9th Edition>
The only way for a crawler to move from one floor to the next is via a stairwell. That’s it. It is an unbreakable rule. There is no skipping floors. At the end of Faction Wars, after the viceroys pulled out their last minute victory, a portal appeared, and several of the remaining fucks stepped within. It was all of them. The orcs, the viceroys, the operatics, even the nagas, all together, laughing as if they weren’t just bathing in each other’s entrails the day before. It appeared it was taking them to another part of the dungeon. Some sort of nightclub on a different floor for a victory party. They dragged several unwilling NPCs with them, including the librarian elves from the college, whose help was instrumental in our survival. A crawler tried to jump through the portal to save the NPCs, and he was stopped like it was a wall of glass. He tried casting a spell through the portal, but it did not work, though the attempt did catch the attention of the orc prince. The orc stepped back through the glass into the smoldering remains of Larracos, lassoed the crawler, and returned to the portal. The rope pulled itself within, and it cut the crawler in half. We watched as the orc and his friends laughed, just there on the other side of the glass. It was the last crawler they killed, of the thousands who fell during that pointless game.
Tonight, I will dream of watching them burn. Tonight, I will pretend I was smart enough to find a way to lance them from afar.
Comrades, I hope you help me realize my dream one day.