In 1809, Thomasina Coverly, heiress to the country estate Sidley Park, is a precocious teenager with ideas about mathematics well ahead of her time. She studies with her tutor, Septimus Hodge, a friend of Lord Byron (who is an unseen guest in the house). In 1993 a writer and an academic converge on the house: Hannah Jarvis, the writer, is investigating a hermit who once lived on the grounds; Bernard Nightingale, a professor of literature, is investigating a mysterious chapter in the life of Byron. As their investigations unfold, helped by Valentine Coverly, a post-graduate student in mathematical biology, the truth about what happened in Thomasina's lifetime is gradually revealed. In Arcadia, a dazzling play of wit, intrigue and comedy, Stoppard guides us through two intertwining stories of romance and discovery; sharing the same room but separated by centuries.