The book “A Perfect Equation” is written by Elizabeth Everett. The book is a captivating historical romance that brings together a sharp-tongued mathematician, a reclusive nobleman and a daring team of female scientists. The story is set in Victorian England, and it follows Miss Letitia Fenley, who reluctantly manages Athena’s Retreat, a secret haven for women scientists. Lord William Hughes and Viscount Graycliffe aid him despite their mutual enmity. It falls under genres like Romance and Historical Fiction.