Lysander closed the blinds, satisfied seeing that the assassin appeared to have fled. He stepped back, preparing to respond to Vesper, but noticed a defined shadow moving down the hall towards them. As the shadow drew closer, it shifted and distorted, until Lysander could see that it was neither shade nor apparition, but a massive crowd of spiders.
He staggered back, glancing at Vesper and Jin, who stood before him. 
"Get back!" he yelled, glancing about the room as the swarm of spiders grew closer. He snatched a lantern of the wall and smashed it on the floor, and a column of flame erupted on a puddle between them and the spiders, burning harmlessly on the tiled floor but serving as a barrier.
When he was certain the flames would not catch on the walls, he looked at Vesper and Jin.
"Let's get out of here," he said, knowing that the spiders would soon climb around the walls. "We need somewhere safer for the night."