George Poole copes with the mid-life crisis of losing his father. He meets Peter McLachlan, an eccentric member of an online free-thinking Internet group called the Slan(t)ers, who is researching dark matter and who is fascinated by a new and unknown artificial object discovered beyond the orbit of Pluto. George Poole uncovers an old picture showing a sister he never knew. Poole also discovers that his father regularly donated large sums of money to an organisation called the "Puissant Order of Holy Mary Queen of Virgins". Combined with a sense of futility in determining his future and encouragement from both Peter and his former wife Linda, Poole decides to uncover the mystery of his missing sister.