The forest of HalÃ«fas is a strange place indeed. It has long been inhabited by the forest elves, a race of elves descended from the high elves that have lived for over 9000 years isolated there. This wood is patroled by a groupe of expert rangers who know the forest well, Tred lightly and unthreateningly here for you may find your end in Hathil’S arrow.
The players see a small shrine to the local nature deity just of the trail. Before they even approach it, they can smell the foul stench of rotting meat. If they inspect the shrine, they can see it has been desecrated by rotting organs in the last few days. There is no mistaking it for an obscure ritual, the organs are thrown everywhere, not left in specific places as in sacrifice.
If the players try to clean the shrine, they will soon find it has been boobytrapped to fling sharp splinters covered in the rotting gore in every direction. While only doing a few points of damage, they injured players will likely take sick soon unless they get medical attention.