Tonight, they don't fall asleep. Instead: as they keep watch, they'll notice slowly that there's . . . hm. Something in the water.

A flash. A glimmer that lasts only a few seconds, if that, a flare of light that brightens and dims. It happens twice more, and if the boys are observant, they'll notice that their own marks are flaring and dimming in time with it.

This continues all night, although the pattern varies: sometimes there's only a few seconds between flashes, and then again sometimes it's an hour. Towards the end of the night, the flares get brighter, stretching out over their skin, consuming more of whatever bare flesh can be reached. Which is not great, honestly, but it's not as if it hurts, it's just . . . odd.

The boys may also notice, if they're particularly observant, that there seems to be . . . something way, way out on the horizon. An island, maybe? Or perhaps just a sandbar. It's hard to say from this distance.

Once the evening is done, those glowing marks fade away. The lake is still and dark, and the way back is clear and free of incident.

Good job, guys! Way to find the hell out of that lake!