The Paladin's Lament (5E)

From publisher blurb: Where the Wasting Way ends the gates begin. Named the Ahargon Den, the Mouth of Darkness, the gates stand beneath the dark shadow of Aufstrag, offering entrance to those pits of Hell. But before taking the gates one must pass a wilderness of dangers. The weak suffer only loss. A high-level adventure for a party of 3-6 characters. Play as stand-alone or part of a larger series.