Complex sentence: He remarks that the snow has blocked the roads and that the denizens of the house are trapped.Uneasy about Paravicini's manner, Mollie nevertheless places him in the last remaining room.
Split into simpler sentences: He remarks that the snow has blocked the roads and that the denizens of the house are trapped. Despite being uneasy about Paravicini's manner, Mollie places him in the last remaining room.