The soul mass in Chamber 12 was a sword.
It stood upright in the center of the chamber with no visible means of support, point down, hovering a finger's width above the floor. Pure white from tip to pommel, light coming off it in a steady, sourceless glow that filled the chamber evenly. Even from the doorway he'd walked through, before he'd taken a single step toward it, Finn could feel it assessing him.
And unlike the curious assessment of the hearthstone, this one was undisguised judgment. The sword was judging him, evaluating him against criteria that were already fixed, and the feeling coming off it rubbed him the wrong way. For a second, it made him feel as if he was in the wrong… as if he needed salvation.
But the feeling didn't last for more than a second.
Finn snorted and shook off the sensation, then watched as the sword's aura flinched slightly in response.
It actually tried to judge me…? Interesting…
