This is a story of love and astronomy; music and silence; secrets and truth-telling; of world-changing discoveries, and unrequited desire. Moving from York in the 1780s to Regency Bath, and then to Hanover in the 1840s, it concerns the lives of three people-all astronomers. There is Caroline, torn between her passion for music and her passion for the stars; John, deaf from childhood, whose extraordinary mathematical gifts afford him perspectives not available to others; and Edward, friend and mentor to Caroline and to John, who must conceal his innermost feelings from them both. All three find fulfilment in the heavens for the set- backs and disappointments they encounter on earth. All three, in time, come to know the truth about variable stars.