Ys: Tenkuu no Shinden - Adol Christine no Bouken
English title: Ys II: Castle in the Heavens
Japanese title: Ys (イース) 天空の神殿 アドル=クリスティンの冒険
Alternative titles: Ys II, Ancient Books of Ys II
Type: OVA
Source: Game
Episodes: 4
Status: Finished Airing
Aired: Dec 16, 1992 to Jul 21, 1993
Duration: 30 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Tokyo Kids
Producers: Kadokawa Shoten, Nihon Falcom
Licensors: Media Blasters
Genres: Adventure, Drama, Fantasy
Themes: Mythology

Now that Adol Christen has saved the land of Esteria from the evil priest Dark Fact, Adol and the two priestesses travel to the floating land of Ys, where evil has an even greater influence on the people and no one has hope. The future of Ys falls to Adol, heir to the powers of the priests and the only one who can show the people of Ys the truth about their world. But, as Adol's power grows, he may be the one who will save Ys—or destroy it.