The book opens with: "Words fail me."[5] It follows the adventures of an aspiring biographer of Isaac Newton who rents a rural retreat in the south of Ireland to write an in-depth treatment of an obscure and disturbing letter Newton sent in 1693 to John Locke. He becomes involved with two women: Ottilie Garinger and her aunt, Charlotte. The presence of Charlotte's husband, Edward Lawless, creates a romantic triangle-plus-one. It has been observed that Charlotte, Ottilie and Edward are the three main characters of Goethe's 1809 novel Elective Affinities.[1]
The Newton Letter is the third of Banville's "scientific tetralogy" (preceded by Doctor Copernicus and Kepler, followed by Mefisto, a reworking of the Faust theme). The writer has suggested that those who wish to sample his work begin with this work ("It's pretty well all there. And it's short.")[6]