London: Sphere, 2018. First edition of the fourth book in Rowling's Cormoran Strike Series, published under the pen name Robert Galbraith. Octavo, original cloth. Signed by Rowling on the title page "Robert Galbraith" and with Rowling's hologram sticker to the verso of the half-title page. Fine in a fine dust jacket. Jacket design and photograph by Duncan Spilling. Uncommon signed. Rowling announced the completion of the manuscript of Lethal White on March 23 2018, after approximately two years of writing, and the book was released on September 18 2018. The gripping mystery follows private detective Cormoran Strike and his partner Robin Ellacott immediately following the conclusion of Career of Evil and opens at the wedding of Robin Ellacott and Matthew Cunliffe. "Rowling’s wizardry as a writer is on fulsome display in Lethal White...a behemoth of a novel that flies by in a flash. This is a crime series deeply rooted in the real world, where brutality and ugliness are leavened…