Kethril Eliandor was an Elf-Human Crossborn native to the City of Merellien. From birth, he was raised and trained by the ruling house Merellien to serve the national interests of the Elthysi Sovereign. His education was deliberate and exhaustive; he was taught deception, etiquette, and rhetoric, and trained to pass as a native speaker in multiple languages without accent.
He was first stationed in Commona under a noble identity, and presented as an advisor of minor but respectable standing. Using his training, Kethril ingratiated himself with local aristocracy and gained entry into the high society of Emblem, under the alias of "Keaton Elisson". He attended rulings at the Court of the Torch with regularity and maintained steady correspondence with Elthys, sending coded missives that reported on political movements, alliances, and internal disputes.
For years, his cover held, but eventual exposure came through a single lapse. While speaking privately with a diplomat from Tirion Isilmírë, Kethril used Elven phrasing marked by a distinctly Elthysi dialect. The exchange was unfortunately overheard by another nobleman, and the passing suspicion reached the ears of the Torchwarden. An investigation followed, uncovering inconsistencies in his identity and evidence tying him to Elthys intelligence networks, and he was immediately arrested.
His unmasking coincided with growing debate over the relevance of the Aonefort, which some in the Council of Commonlight viewed as an outdated and wasteful holding. Kethril’s arrest and conviction reframed the issue. His case demonstrated that Elthys remained an active and capable adversary. The Council ruled that the Aonefort would be converted into a combined watchtower and prison, intended to hold enemies of the state beyond the mainland. Kethril was designated its first inmate and transferred to Aone Island, where the prison of "Bleak End" was established.
Within his first day of confinement, "Prisoner 1" died under suspicious circumstances. The warden at the time stated that the death appeared to be the result of Elthysi Spellcraft, possibly triggered remotely or bound to the prisoner himself. Though no definitive cause was proven, the administration ordered the installation of anti-magic cells throughout Bleak End, a measure that permanently shaped the prison’s design and purpose.