Three students at the Mage Academy uncover a sealed passage beneath the Astral Tower and follow a legend that may have been left buried for a reason.
Evening settled over the Mage Academy in Green Forks like a spell cast too slowly to notice at first. The courtyards emptied, the training lawns dimmed to silver, and the scent of crushed sage drifted through the cold air from the herb gardens below the walls. Above them, the Astral Tower rose from the centre of campus in black stone and narrow windows, its upper rooms reserved for the academy’s most dangerous relics and the students brave enough to pretend they did not fear them.
Lina, Alan, and Frederick waited on the lower steps where the lamplight failed to reach. None of them spoke for a while. The map between them seemed to pulse with importance, as if the ink had not quite decided whether it wanted to stay still.
Alan had found the book by accident in Spell Theory, when a careless nudge sent a dust-choked volume sliding from the shelf. It had landed open on a page marked with a snake’s head and a ring of symbols no lecturer had ever bothered to mention. That should have been the end of it. Instead, the three of them had spent the last week chasing references through archives, indexes, marginal notes, and half-legible footnotes written by scholars long dead. Every path led back to the same whisper of a legend: something hidden beneath the Astral Tower, something sealed away before the academy was built above it.
Lina flexed her fingers around the silver key she had prised from a crack in the stonework earlier that night. It was cold enough to sting. Frederick kept his potion of light cupped in both hands, the liquid inside glowing with a steady, uneasy blue. Alan had the map and the notes, though his grip on them tightened every time the wind moved through the courtyard.
They had left the dormitory after curfew, timing each step between patrols and ward flickers. The tower’s lower corridors were quieter than the rest of the campus, but quiet did not mean safe. Runes hid in the mortar. Old charms watched from corners. Twice, Lina felt the hair rise on her arms as they passed doorways that should have been empty and were not quite empty at all.
At the end of a narrow passage, they found the door the map had promised: a plain slab of black wood, so unremarkable it looked misplaced. The key turned with a sound like a breath being drawn in.
Beyond it lay a corridor tiled in dark stone that swallowed the sound of their footsteps. Mist threaded along the floor, thin at first, then thicker, as if the tower itself were exhaling. Frederick lifted the potion higher. The glow turned the walls pale and revealed symbols etched into the tile edges, each one older and sharper than the last.
The passage ended at a gate banded with silver runes. Lina reached for it, but Alan caught her wrist just before her hand touched the metal.
The words came then, not from the air but from inside his skull, cold and clear as a bell struck underwater: Only those who know their own shadow may cross the Threshold of Illusion.
The gate shuddered. Blue light spilled through the seams. Somewhere below them, something answered with a deep, slow pulse, and the floor beneath their feet trembled as the black crystalline portal ahead of them began to wake.