that if they had any intention of doing so, they would have done it already. And then he dived into the water, surfacing a moment later. The flashlight beam illuminated a patch of the water, unaffected by being submerged, and he felt a sliver of relief. He shifted over to the left side of the cavern, where he could scrabble along the wall and his boots would not drag him down.
Drake kept his head above water all the way to the other side of the cavern. He kept his breathing steady, calming his heart, and then he ran out of room. The tide had lowered the water level in the cavern, but it wasn’t low enough that he wouldn’t have to swim underwater to find an exit.
He took a deep breath and went under, stepping away from the wall and letting his boots drag him down. With the flashlight out in front of him, he kicked forward, swimming as best he could despite the light in his hand and the weight of his clothes and boots. He blinked his eyes against the sting of the salt water, and only then did he realize how hot the water was. It came from the sea, pushing in and dragging back out again, but the volcanic vents underwater heated it while it churned in these caves.
As long as he didn’t boil or drown, he figured he’d be fine.
Kicking off the walls and bottom of the crevasse he had entered, Drake waved the flashlight left and right. Cave fish, unused to the light, darted away from the beam. He saw silver eels rippling in the ebb and flow of the current that tugged him along. For once, fortune was with him. The tide was still going out. He only hoped it did not turn before he went back to get the others.
What are you thinking? Just hope you make it back to them.
He could almost hear Sully’s gruff voice in his head, telling him to focus. His anger returned full force, and he had to tamp it down to stay calm and hold his breath.
Ahead, the dark water seemed to lighten, and he let himself hope. Clicking off the flashlight for a moment, he confirmed the glow, but as he swam toward it, he saw the gloomy luminescence came not from daylight but from cracks in the floor of the cave. As he swam over the pair of volcanic vents, he could feel the heat from below, and again he wondered how the people of Santorini could knowingly make their lives on the rim of an active volcano.
His lungs began to burn. Clicking the light back on, he kept swimming even as he began to realize that he would have no choice but to turn around. Searching upward with his free hand, he hoped to find an air pocket where he could get a sip of oxygen, but there was no space between water and stone.
Drake cursed the weight of his boots, wishing he had risked taking them off. They had slowed him, and now they felt heavier than ever. He wondered if they would be the death of him, if he would be able to make it back even if he turned around now. Though his thoughts had turned sluggish, he tried to figure out how far he had come, how far the cavern with the ruined worship chambers might be from the outside, but he knew it was foolish even to wonder. Any guess would be nothing more than that.
The pressure built in his head, and he felt his chest constricting with the need for air, and suddenly he understood that he’d come too far, that turning back was no longer an option. Forward was his only chance.
Even as the thought struck him, he saw light ahead yet again. It might have been more vents, but this time, when he clicked off his flashlight, he realized the glow luring him forward came not from below but above. Desperate for air, he swam another ten feet, then fifteen, and finally twenty-five, and then he could stand it no longer.
Chest burning, mind screaming, he kicked for the surface and emerged with a wheezing gasp into a much narrower cavern, perhaps as little as eight or nine feet in width. The afternoon sunlight that streamed in came from a crevice another twenty yards ahead, but beyond it, he could see a sliver of deep blue sky.
A grin split his face.
And then he realized he had