In which Swithin St. Cleeve receives a mysterious and precious lens from Lady Constantine that rekindles his hopes for completing his great telescope, while their tentative and somewhat awkward acquaintance deepens through exchanges fraught with unspoken feelings and delicate misunderstandings. Meanwhile, Lady Constantine becomes quietly fascinated by the prospect of assisting Swithin’s scientific ambitions, even as she contemplates the difficulties such support might entail within the confines of her own constrained existence.