In Japan, two light novels were released about a year after Ar tonelico Qoga: Knell of Ar Ciel was released. Bearing the same name as the game, these two volumes acted as an epilogue to the PlayStation 3 title after their March 15, 2011 debut. Now, five years later, fan translations for both parts have appeared on the Ar tonelico wiki. (Thanks to Aquagon for the head’s up and for the translations!)
The light novels are set five years after Ar tonelico Qoga: Knell of Ar Ciel. The Third Tower, where all the people of Sol Cluster live, won’t be able to support them for much longer since Tilia, known in the localized games as Tyria, is dying. Aoto, Saki, Finnel, and the others have found a way of keeping Tyria alive, but it’s unknown if it will work or be worth the cost, since it’ll make Tyria suffer.
You can now read the first and second parts of the Ar tonelico Qoga: Knell of Ar Ciel light novels online. Untranslated, physical copies are immediately available in Japan. Ar tonelico Qugo: Knell of Ar Ciel is immediately available for the PlayStation 3.