Dust sifts from the buckled ceiling, then settles. Kynes and Bren stand in the violet hush, the wall beside the glass plate half-open at last.

Bren eases one shoulder from the stone, breathing hard. Her eyes stay on the glowing cavity, but her grip loosens a little.

She gives Kynes a tired glance, half gratitude and half challenge, as if waiting to see whether he will answer with caution or courage.

The violet light reflects in her face, turning fear into a steadier wonder. The chamber still groans in the distance, but this corner holds.

For a brief moment, the falling dust becomes quiet enough to hear their breathing. Bren waits beside the opened wall, giving Kynes room to speak.

Kynes steps to the violet plate and sets the seal against the mirror. The glass key follows, angled like a latch finding its home.

He channels power through all three at once. Violet light knits into a single bright thread, and the hidden mechanism answers with a low, stone-deep hum.

The wall split widens with a clean slide, revealing a narrow shaft cut into the dark below. Dust spills downward instead of up.

Bren leans in, wonder sharpening her fatigue as the violet glow traces the new opening. From somewhere deeper in the tower, a fresh groan rolls through the stone.

Kynes catches the edge of the revealed shaft and tests it with his staff. Stone answers, steady enough.

He slips past the lip first, then lowers himself into the dark with controlled ease, the violet glow washing over his hands and boots.

Bren follows close behind, one hand on the wall, her breath quick in the narrow space.

Below them, the shaft opens into a hidden passage carved with thin, angular runes. A draft carries up the scent of cold earth and old magic.

From above, the chamber gives one hard shudder, and a rain of dust sifts down after them.