In the palm of her hand lay the diamond—enormous, priceless, deadly. When Page Hazeltyne came to Mystery House as the companion to eccentric Mrs Prendergast, she was enmeshed in a baffling intrigue. The precious Ked Anna diamond had disappeared. Page discovered who had the diamond, but she dared not tell. Among the strange, greed-ridden residents of Mystery House, there were those who would murder to possess the gem. Page had to sort out the friends from the enemies—for one of the guests in that fearsome place was the man she loved.