Under One Roof: An environmental engineer discovers that scientists should never cohabitate when she finds herself stuck with the roommate from hell--a detestable big-oil lawyer who won't leave the thermostat alone. Stuck with You: A civil engineer and her nemesis take their rivalry--and love--to the next level when they get stuck in a New York elevator. Below Zero: A NASA aerospace engineer's frozen heart melts as she lies injured and stranded at a remote Arctic research station and the only person willing to undertake the dangerous rescue mission is her longtime rival.