Complex sentence: The new family find refuge in a ruined Abbey, where Adeline stumbles across a mystery, and when its owner, the Marquis, returns, the plot thickens in typical gothic style, as the Marquis falls for Adeline's beauty.
Split into simpler sentences: The new family find refuge in a ruined Abbey, where Adeline stumbles across a mystery. When its owner, the Marquis, returns, the plot thickens in typical gothic style, as the Marquis falls for Adeline's beauty.