The Doctor cupped his hand around the side of the paper, but there wasn't enough pressure to move it over. He tried curling the sides, but nothing changed.

"Hydroanalytical pressure tubing, maybe?" the Doctor called over to him. "It's primitive, not as primitive as, say, stitching closed a wound, but it's fairly ancient technology---"

Not too primitive for the Time Lords, but this Tomb wasn't built by just any Time Lord. He took a few steps back from the wall. "That's far too unsophisticated for Rassilon. I think you're right, Jack, this is a distraction. A very good distraction, the right level of frustrating and challenging."

He looked over to Jack. "But what are they distracting us from?"