The cave mouth waited exactly where the map promised, a black seam in grey rock half-hidden behind a fall of loose scree, and Corren stood at its threshold a long moment, listening to his own pulse and nothing else, before drawing a slow breath and speaking the corrected words Jo had taught him a lifetime and a continent ago in a different harbor's dark: make the sight of me unseen, make the sound I make unheard. The familiar cool nothing dropped over his skin, sight and sound both folding away from the world's notice, and he stepped into the tunnel with the small, honest drain of the working already ticking against his reserves, a coin spent before he'd even reached the first real danger.
The tunnel narrowed and dropped by degrees, cold seeping up out of the stone itself rather than down from any wind, and Corren heard the beast before he saw it: a slow, wet rasp of breath, enormous, echoing off walls close enough on either side that he could have touched them with both arms extended.
It filled the chamber ahead of him almost entirely, a shape somewhere between wolf and something older and colder, fur gone patchy and white with age, ribs visible beneath skin stretched thin over a frame that had clearly once been considerably larger and more dangerous than the frail-looking thing standing sentinel now. Its eyes, when the faint phosphorescence of the chamber's own lichen-lit walls caught them, showed nothing at all, clouded milk-white and turned toward sounds rather than shapes, and its ears, disproportionately large against its narrow skull, swiveled in Corren's direction the instant his boot found a loose pebble he hadn't seen in time to avoid.
He froze, breath held so completely his chest ached with it, and watched the beast's head turn, hunting, its nostrils flaring at air that carried his scent perfectly well even if the chant had scrubbed the sound of him from its hearing entirely. It took one slow, testing step forward, jaws working around a low growl that vibrated up through the stone floor and into the soles of Corren's boots, and he understood, watching it hunt for a threat it could smell but not properly locate, exactly how narrow a margin the invisibility chant's silence was actually buying him.
He backed along the chamber's far wall one careful, silent step at a time, boots placed heel-first the way Doss's Patience Form had drilled into him over a full month of aching rooftop practice, and watched the beast's blind head track the space he'd just vacated a half-second too late to matter. It took nearly ten full minutes to cross a chamber that would have taken him ten seconds walking normally, sweat cold on the back of his neck despite the chamber's own bone-deep chill, and he did not allow himself the relief of a full breath again until the passage beyond had swallowed the last of the creature's rasping breath behind him.
The second chamber opened wide and low, and eight shapes waited inside it exactly the way the journal's oldest, half-legible marginal note had warned they might: armored skeletons, tarnished iron plate hanging loose off bones gone the color of old candle wax, their empty eye sockets carrying the same faint, unholy glow Corren remembered from a very different tomb a season and a lifetime ago.
They detected him the instant the invisibility chant's edge frayed against the chamber's own ambient magic, whatever residue of old power still clung to this place reacting to his presence the way iron filings react to a magnet passed too close, and he dropped the working with a small, resigned exhale and drew the Morning Star instead, its black blade drinking in what little light the chamber offered and giving almost none of it back.
They came at him with the same wrong, doubled-back joint movements the Tomb Walkers at Ferrow's mountain temple had shown, slow and clumsy individually, dangerous only in the number of them closing at once, and Corren fell into the same economical patience Doss's training had built into his hands, cataloguing their reach with the clinical detachment of a man reading a manuscript's damaged margins even as he ducked a rusted blade swinging wide from his left. He took the nearest two apart with the corrected lightning working he'd first spoken in Vaenor's own burial gallery, arcing white current between their metal joints in a chain that dropped four of them boneless in a single strike, and finished the remaining pair with the Morning Star's own black edge, the familiar drain of two chants and a dozen sword strokes pressing into his chest heavier than any single working alone would have asked of him.
He found a small iron key clutched in the last skeleton's rusted gauntlet, tucked into a fold of armor that had clearly been meant to hide it from anyone who hadn't already known precisely where to look, and pocketed it with the same wary attention he gave everything unexplained now, filing away a question he didn't yet have the leisure to ask: why leave a key on a guard rather than simply locking the door and losing it.
The third chamber's door resisted the key at first, the mechanism inside grinding with the reluctance of a lock that hadn't turned in longer than anyone still living could remember, and Corren worked it patiently rather than forcing it, some old academic instinct refusing to let him break what could still be coaxed open properly. It gave, finally, with a groan that echoed unpleasantly down the tunnel behind him, and the room beyond opened onto exactly what Cyril's story had promised: a golden chalice resting on a stone pedestal at the chamber's center, catching light from some unseen source Corren never did identify, its surface worked in fine, spiraling filigree that seemed, the longer he looked at it, less decorative than deliberately, precisely functional, a physical shape built to focus something rather than merely to please the eye.