Complex sentence: In the Clansman Jack tells Victor about his plans to move and when he enquires about moving into Victors, He flatly refuses and makes up excuses and finally tells him the reason is he'll nick all his Biscuits.
Split into simpler sentences: In the Clansman Jack tells Victor about his plans to move. He enquires about moving in with Victor, who flatly refuses, and then makes up excuses and finally tells Jack that the reason he won't let him move in is because he'll take all of his biscuits.