DCCZ: Defenders of the Red Keep
The Horn of Kings
Horn was used to revive Golash the Bear, subsequently turned to dust.
Glows in the presence of poisoned food or drink
4/week: + 4 vs. poison
3/month: 1d12 x CL in healing
May revive a dead character once, and then the horn crumbles to dust.
Source: Sailors on the Starless Sea