Agatha Christie: And Then There Were None Agatha Christie: And Then There Were None Agatha Christie: And Then There Were None (also simply known as And Then There Were None) is a 2005 point-and-click adventure game developed by AWE Productions and published by The Adventure Company for Microsoft Windows. It was the first in The Adventure Company's "Agatha Christie" series. The game is a detective murder-mystery; it begins with nine people, including Patrick Narracott, the playable character, who meet and journey to the fictional Shipwreck Island. There, two additional onscreen characters are introduced, and the story then follows the events that unfold. "And Then There Were None"
All or none All or none All or none (AON) is a finance term used in investment banking or securities transactions that refers to "an order to buy or sell a stock that must be executed in its entirety, or not executed at all". Partial execution is not acceptable; the order will execute "only if there are enough shares available in a single transaction to cover it". An all-or-none clause in an underwriting contract or investment prospectus gives a securities issuer the right to cancel an issue in its entirety if the underwriting is not fully subscribed. AON orders are similar to fill