Beneath the hills, the darkness is not empty.

The investigators leave the safety of the surface behind and descend into places where daylight has never fallen. Each step carries them farther from the world they know, through passages shaped by old hands and into depths where the silence seems less an absence than a watchful presence.

There are signs that others came before them, but in the earth below, distance and reason begin to lose their meaning, and the investigators are forced to confront a terrible possibility:

They have not merely entered the darkness.

The darkness has become aware of them.

Deep within the Underdark, the Curtain Callers attempt to unravel the mystery surrounding the ruined duergar settlement and its peculiar inhabitants.

While Sir Tirion and Mina question their unusual hosts, Daemon and Aelfric take a more methodical approach, searching the abandoned village for evidence of what happened here, and whether the survivors they've encountered can truly be trusted.

But patience wears thin, and Shadar withdraws from the investigation in search of solitude beside a quiet underground pond. Away from the others, the cleric turns his attention towards something far more personal, reaching through the veil in search of a figure from his past.

When Mina joins him, a rare moment of tenderness offers some respite from the darkness surrounding them.

But questions remain. What happened to this settlement? Who, or what, are its inhabitants? And in the depths of the Underdark, are the Curtain Callers investigating the aftermath of some forgotten tragedy… or have they walked straight into it?

The earth remembers what men choose to forget.

Drawn together by a mystery rooted in years long buried, a group of investigators begins to disturb the settled dust of the past. Old accounts are revisited, uneasy questions are raised, and beneath the ordinary details of human history they glimpse the outline of something that should not be there.

There are absences where answers ought to be, and beneath the hills, unseen in the lightless depths, something ancient appears to have left its mark upon the generations above.

The investigators have only begun to dig.

They cannot yet know how deep the past descends, or what may feel their hands upon the soil.