Balder collapses suddenly after the play. As Apollon and Yui visit him in the infirmary, they overhear Loki telling Thor about he will kill Balder, much to their shock. Loki explains that whenever there is light, there will also be darkness, which rests as an inborn power within Balder as the God of Destruction. When Balder awakens, he realises Loki's aims and accepts his death as a dangerous being. However, Loki is unable to do so, prompting Balder to jump off a cliff instead and commit suicide. (thetvdb.com)