Blocks had sunk into the floor of the arena, lined by the towers between which the Space Marines had been leaping. Dirty water had rapidly seeped up through grilles in the block-bottom of the large pit and filled it to a reasonable depth.
Montalbán watched the weapon fly across the water’s expanse and clatter to the ground on the other side. Instead of waiting for Alighieri to join him on his tower, the Imperial Fist dropped down the side of the column, sending a quake through the dark stone as he landed. The Black Templar wouldn’t have been able to make good on his bold opening since Kersh had come back at him with a lunge that had every right to gut the Castellan. Somehow the nimble Alighieri managed to arc his palsied form about the sword’s stabbing path.
	The tower suddenly bucked. Kersh initially assumed that the blocks were once more on the move, but a second impact convinced him otherwise. The giant Montalbán was throwing his bulk at the tower base like a beast of the plains felling titanwoods. The third slam of superhuman shoulder against stone took out the base block and toppled the tower. As the column shook and tipped, Kersh lost his footing and went down in an ugly fashion. Striking his chest against the block edge he felt the shell of his fused ribs crack. He clawed at the smooth surface of the dark stone, allowing his gladius to tumble from his grip and into the filthy water below. The unsuccessful Scourge followed the weapon and was in turn followed and buried by the falling blocks of the collapsed tower.

Legion of the Damned pg. 162