“…there seemed to stand above my head a woman of most reverend countenance, her eyes burning and piercing beyond the common power of men.”
The hint
A man in a cell, awaiting death, visited by Philosophy. She lets him keep one thing: four letters, and they are the key. The lattice returns.
The cipher
ZCAEJS
— Boethius · The Consolation of Philosophy · c. 524
Enter this door
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