The Chalycidican peninsula had been thrown into chaos by Iam's fall and the subsequent invasion of the Tympanian liberators, and the question of what to do with the now-occupied peninsula was a pressing one. Because the Chalycidican leaders had colluded with Iam at the beginning of his reign, and because the people of the peninsula had resisted the invasion of the liberation forces, many, Titus included, felt that the peninsula must not be permitted to retain its independence. Cyril, however, was adamant on the subject of Chalycidican self-rule, and the debate between Tympania's liberator and its new king became acrimonious. It grew even more so late in 85, when Cyril declared that he had chosen Vyreth, the last surviving member of Chalycidice's ruling House of Lycas, as his queen. Popular opinion was very much against the marriage, but nonetheless Cyril brought Vyreth to Tyrrie to become his wife at the end of the year.
This decision, as it turns out, was to settle the question of Chalycidican autonomy both decisively and unexpectedly. Shortly after Cyril's entourage reached the borders of Rhythnor near the mouth of the Tyr, the entire Chalycidican peninsula sank into the sea. It is claimed that Vyreth watched the inundation from the present-day shore as if she had anticipated the event, but she was neither to confirm that she had foreknowledge of the disaster nor to venture an opinion as to its cause. Chalycidican refugees escaped in large numbers to Rhythnor, where they still constitute a large segment of the population in the coastal regions, but the only Chalycidican city to survive was Lyridice, at the mouth of the Arveth. Lyridice was granted independent status later that year.
The cause of the sinking of Chalycidice is utterly unknown, although some connection between the fate of the peninsula and that of the House of Lycas is generally assumed to be an important factor. The Chalycidican survivors themselves seem to have believed it to be a form of divine punishment, although for what sin (and from what god) has never been determined.
