Episode 3 — The Light Gap

Mission Log 9. Pip recording.

Bright light is already spilling under the basement stairs when the crew reaches the western route. It cuts across the floor in a sharp moving stripe that keeps changing shape. One moment it is narrow. The next it stretches wide enough to cover half the path. Brisk stops at the edge while Pip slows beside him with the route slate pressed tight against his chest. The light flickers. Dust spins inside it like falling stars.

Nola arrives from the Dust Passage with both antennae pointed straight up toward the stair crack.

“Ceiling movement,” she says quietly.

Brisk steps into the stripe, then stops immediately.

“Warm.”

The shadow beneath him turns hard and black. Then the light vanishes completely. The basement drops into sudden dimness and Brisk freezes mid-step. A loud creak echoes from above. The light returns brighter now, wider, sweeping fast across the floor. Brisk scrambles backward with his legs slipping on the warm concrete. The stripe reaches Pip. He drops the slate and backs hard against the wall. The slate clatters once across the floor and stops half inside the light.

Fern drops from the ceiling pipe without a sound and hangs low watching. The light flickers again.

Dark. Bright. Dark.

Brisk reaches one front leg toward the slate. The stripe catches him again and he flattens himself against the concrete immediately. Nola presses herself tight beside the paint containers.

“Gap is active,” she says quietly.

The bright stripe sweeps once more across the western route. Then it begins shrinking steadily back toward the crack beneath the stairs. It narrows. It thins. It disappears. The basement settles into its normal dimness.

Nobody moves for several seconds.

Pip retrieves the slate slowly. One corner feels faintly warm in his paws. A small patch of dust that had been inside the stripe is gone now. Brisk stands carefully with one front leg still raised. Fern climbs halfway back toward the pipe, then stops again.

Pip looks at the empty space where the light had been strongest. The concrete there looks exactly the same.

He writes one short line on the slate.

Upper Atmosphere Light: route unstable.

He closes the slate. The western route stays dark and quiet. The crew does not cross it.