Complex sentence: In this way, he could get through without anyone knowing who he is, Until Dart Feld and Lavitz Slambert revisited Hellena Prison to rescue King Albert of the Duchy of Basil from execution.
Split into simpler sentences: In this way, he could get through without anyone knowing who he is. When Dart Feld and Lavitz Slambert revisited Hellena Prison to rescue King Albert of the Duchy of Basil from execution.