Storm Cycle by Iris & Roy Johansen Book

     Rachel Kirby is a computer genius whose personal life is falling apart. While her beloved younger sister is dying of a rare illness, Rachel is running out of time to connect the intricate pieces of a technological puzzle that will keep her alive. When a call comes from thousands of miles away, she is shocked to learn that a mysterious man named John Tavak has unearthed a stunningly important secret in an Egyptian tomb. It’s a discovery that humankind has been seeking for centuries―one that may save the life of Rachel’s sister and many thousands more.