Movement caught Knox's eye. He looked up to see Khaled toss the grenade down the centre of the shaft, froze for a moment as he watched its lethal arc. Lily saw it too, screamed and closed her eyes, bracing her body against mutilation and death. Her shriek shocked Knox into action. He dived towards the grenade, arms outstretched, some futile notion in his mind of trying to throw it back up, impossible though he knew it to be.
It slapped the heel of his right palm, heavier than he'd anticipated, like a ball of lead, throwing up a splash as it bounced from his hand. He reached after it, fumbling it with his fingertips, finally grabbing it, but already deep underwater, no time to think, only to kick deeper and thrust it into the talatat hole, then turn and kick for the surface, hope the limestone would protect him from-
The explosion ripped through the water, his world spinning crazily, bell-towers clanging in his head, arms flapping uselessly, mind scrambled, swallowing water, unsure which way was up. His head struck rock, scraped along it. He stabilized himself, kicked upwards, broached the surface, coughing and hacking for air, splashing around with Lily, the plank dislodged by the blast. And then something suddenly gave way. The water all gushed out, leaving him, Lily, Gaille and the planks stranded bewildered on the shaft floor.
He looked up. Khaled was staring down in dismay, fumbling for his handgun, muzzle flashing, bullets ricocheting wildly. Lily recovered first, throwing herself through the gaping hole that the grenade had ripped in the wall into a new chamber, half filled with water. Knox scooped up Gaille and tumbled after, bumping into something bulky and soft: Stafford's body, floating face down. He glanced at Lily, her torch making eerie patterns in the rippling water. She shook her head and turned away, not able to talk about it.
A narrow dark arched passage led off the chamber. Lily said something he couldn't catch, his ears still ringing from the blast. But her meaning was clear enough. He nodded for her to lead the way, then adjusted Gaille in his arms and set off after her.