For Dawson Cole, the hallucinations began after the explosion on the platform, on the day he should have died.

In the fourteen years he’d worked on oil rigs, he thought he’d seen it all. In 1997, he’d watched as a helicopter lost control as it was about to land. It crashed onto the deck, erupting in a blistering fireball, and he’d received second-degree burns on his back as he’d attempted a rescue. Thirteen people, most of them in the helicopter at the time, had died. Four years later, after a crane on the platform collapsed, a piece of flying metal debris the size of a basketball nearly took his head off. In 2004, he was one of the few workers remaining on the rig when Hurricane Ivan slammed into it, with winds gusting over a hundred miles an hour and waves large enough to make him wonder whether to grab a parachute in case the rig collapsed. But there were other dangers as well. People slipped, parts snapped, and cuts and bruises were a way of life among the crew. Dawson had seen more broken bones than he could count, two plagues of food poisoning that sickened the entire crew, and two years ago, in 2007, he’d watched a supply ship start to sink as it pulled away from the rig, only to be rescued at the last minute by a nearby coast guard cutter.