Complex sentence: Francesca is forced to stay in the Kinsolving mansion for a few days, and begins to suspect that something is amiss due to inconsistencies in information between what her late husband (Matthew) told her and Mrs. Kinsolving's statements to her.
Split into simpler sentences: Francesca is forced to stay in the Kinsolving mansion for a few days. She soon begins to suspect that something is amiss due to inconsistencies in information between what her late husband (Matthew) told her and Mrs. Kinsolving's statements to her.