Harry tried not to look behind him, but the feeling that someone was watching him was all around and upon him.
This hallway was no different from the others. The torches hung in brackets at different intervals, lighting only a little of the way, the rest of which was dark and felt impassable, even though he stepped through it every few feet.
After a great length of time however he realized that this hall didn�t lead to anything. The torches continued on endlessly before him and endlessly behind him, but there was no obvious indication that this was anything more than an endless hallway.
He stood perfectly still, listening for any noise that might suggest he should continue on. He heard nothing except the familiar cave sounds he had been hearing, minus the shuffles of his feet and the ripples of his robe. He decided that this endless hall was just that and turned around.
He traveled back to the main room, finding Graves leaning against the mantel of the fireplace, his arms wrapped around his chest and his wand out. He saw that Lucius Malfoy was out cold on his face on the floor, and he saw a foot, sticking out from under Grave�s invisibility cloak. He didn�t ask, he simply took his wand out to hold in his hand and joined his friend by the fireplace.