"All-night" drug

A stamina narcotic, and the party held exactly one dose of it, kept back for a night that could not be slept through. It sets fatigue aside for eight hours and takes its payment at the end of them: the user goes straight past tired to exhausted, and stays weakened well after that.

The dose went to Dwayne. Camped on the stone platform outside the keep, one great fire in the middle and smaller ones at the cardinal points to hold off the light-shy blights, he agreed to stand the whole night through while the others rotated their watches in pairs. He was warned he would be very tired in the morning. He was.

A chalky powder bought earlier from Kylar in Loshev went by the same name and kept a man alert for about half a day, with no bill named at the end of it. Whether it was the same preparation was never written down.