Teamwerk
Okay, that's a bit more promising.
The gnome scampers up the scaffolding surrounding the huge edifice here. It runs about halfway up... you'd estimate the Institute is a good twenty stories in height, yikes. But once you climb up a story or two, it's fairly easy to navigate the metal rigging on the outside of the tower.
Near the top of the scaffold, you see a broken window. It's fairly simple to reach in and jimmy it open. All dark inside.
...
It's easy enough to get the party up the scaffold to the window. I'll assume you all head on up. Going in? I took Tut's continual light stone away, but I'll replace it with a lantern, unless someone has other ideas or you don't care to trespass here.