J.K. Rowling writing as Robert Galbraith (2020) Troubled Blood , UK first edition, first printing, published by Sphere. Signed by the author on the title page. Provenance: acquired from Goldsboro s, a London based book business which always receives a contingent of signed copies off the series directly from the publisher. The company also had signed copies of the first Cormoran Strike novel before the identity of Galbraith was known. Also, certified by the official hologram. Condition: a fine unread copy. The fifth Cormoran Strike novel. Scarce as a signed first edition. First and Fine.