In late-eighteenth-century Ireland, accidental stargazer Caroline Ainsworth learns that her life is not what it seems when her father, Arthur, throws himself from his rooftop observatory. Caroline had often assisted her father with his observations, in pursuit of an unknown planet; when astronomer William Herschel discovered Uranus, Caroline could only watch helplessly as unremitting jealousy drove Arthur to madness. Now, gone blind from staring at...