CRUISE James and Kerry stood on either side of the outboard motor with their palms pressed against the back of the boat. It had taken a succession of almighty shoves to nudge the bow over the edge of the riverbank. ‘We should have emptied everything out first,’ Kerry said, wiping a gallon of sweat off her face. ‘Not worth it now,’ James puffed. ‘I think the next one will do the trick. Ready?’ They pushed the hull past its centre of gravity. It tipped forward and began sliding. A backwash ran up the shallow embankment, the muddy water swirling over the toes of their boots. Water surged over the bow as the boat punched the water. For a second, they both thought it was going under. When the craft stopped rocking, the rim of the hull was only a couple of centimetres above the waterline. Each swell in the river splashed a drop more water over the side. The river wasn’t deep enough to put the boat beyond rescue if it sunk, but the engine and half their equipment would be wrecked, along with any chance they had of making the next checkpoint.