If he was thinking clearly, Kell would have realized that Wilhelm's suggestion is actually more reasonable than his own vague plan to search the library. The probability that any of the books they used to suppress the nightmare causing entities are still in the study might be low. It's still an easier place to search that whole damned library. Kell might know its layout well at this point. Six month of study usually helps with knowing your way around. But now there's no one there to ask, and he doesn't even know what they are looking for.

It doesn't stop him from producing a small blade, usually hidden deep in his pockets, to make a small cut, draw a symbol on the door with his blood. Any other time, he'd use a less conspicuous place. The blood might burn out from the surface when used, but it might still leave a trace. Some people might ask questions.

"We're going in."

Kell takes Wilhelm's hand, covers the symbol on the door with the other bloodied one. He left a similar one under a table. Just out of curiosity to see how long will it take before someone notices, or erases it. Any other time, he'd think it too dangerous. Fully expecting the door won't hold.

"As Tascen"

The world went into a nauseating blur of darkness and barely visible features, swirling, bending into itself like the water surface moments before it's breached by the falling stone. Then it bounced back, more rubber than water, repelling any attempt at entry. The barrier he should have expected in this place at this hour, reacting as intended against the breach.

Kell stumbles back, fighting to keep his balance, dragging Wilhelm with him as he falls rather ungraciously to the floor. There will be more than his ego bruised after that.

"Sanct! Can nothing work in this fucking place!"

They can only hope, it's too late for anyone to be awake to hear all this commotion. Otherwise, they'll have some explaining to do.