Chad says he was bit and killed by nearby Lesser Vargouilles. His neck was snapped and almost severed, and he is desperately trying to keep his head on, so that it doesn't become one of those flying heads.
After killing a few Vargouilles and returning to him grants 3750 XP. He also gives information about the Decanter of Endless Water that Glyve needs to free himself. The decanter is in the Drowned Nations.