Complex sentence: As Jean becomes immersed in the details of the 19th-century murders, unspoken emotions begin to surface among the passengers of the sloop, and Jean begins to suspect an affair between Thomas and Adaline.
Split into simpler sentences: As Jean becomes immersed in the details of the 19th-century murders, unspoken emotions begin to surface among the passengers of the sloop. She begins to suspect an affair between Thomas and Adaline.