Cale nods, still looking unsure, then turns and lays her hand against the pillar.

The jewels flare to life, glittering with motes of light which slowly coalesce into lines of writing, all along the pillar's surface. Before anyone can read the text, the air around the column shimmers and blurs, hiding the Tiefling and the riddle from view.

Inside the curtain of light, a startled Cale reaches out to touch the shimmering barrier. She feels no pain or resistance, but her hand simply stops, as if of its own accord. "Um, Thonas? Anyone? Can you hear me out there?"

Her voice is stronger than before, thanks to the rejuvenating effect of the Man in White, but no response comes. "One and one alone," she murmurs, then turns her back to the curtain and studies the pillar.

After reading the riddle from start to finish, twice, Cale frowns. This will take time...what if she forgets who she is again before she finishes? She could trap all five of them here, doom their world again...

The Tiefling closes her eyes and breathes deeply. She will not forget; her mind is her own now. She opens her eyes, and the pillar casts back two small, reflected orbs of golden light.

From a poorly-tanned leather case on her belt, Cale draws a vial of reddish-black ink and a ragged quill pen, plucked from one of Avernus's foul carrion birds. A few crumbling scraps of parchment and vellum complete her tools. She lowers herself to sit cross-legged on the onyx floor, with pen, ink, and parchment laid out in front of her, and sets to work.