"The Turnstile" by A. E. W. Mason is a political novel published in 1912. Cynthia Daventry marries Captain Harry Rames, a promising politician who once led Antarctic expeditions. While she works tirelessly to advance his parliamentary career, she suspects his ambitions mask deeper longings. When Rames abandons politics for a dangerous return to the frozen South, Cynthia must confront her own childhood fears and discover whether their marriage can survive his passion for exploration. (This is an automatically generated summary.)