Trouble with Air and Magic (California Malcoms #2)
Patricia Rice

She turns to computer genius Conan Oswin, whose brother also reportedly died that day. When Dorothea informs Conan that she didn’t feel the vibrations of her brother’s death, he wants to dismiss her illogic... but his instinct for trouble is already on full alert. His attraction to her is almost as distracting as her nonsense about chi and harmony -- nonsense that plants doubts about the deadly crash. If only she would quit twisting his head with temptation, he might be able to save their brothers and her life.