Slowly, so very slowly, she reaches into a hidden pocket of her gown.

Blodwen draws forth a crystal cube and holds it out on the palm of her hand.

"It was with me the whole time," she murmurs. "One of the things it was that made me so furious, cariad, can you not imagine? There with me throughout, and not a finger could I twitch to touch the sides, as you mentioned when first you gave it me, so long ago."

A pause.

"Had I but known..."