Dive into the latest gripping installment featuring Detective Superintendent Roy Grace as he tackles his most challenging case yet: a near-fatal attack on the Royal Train. Bestselling author Peter James delivers a pulse-pounding mystery where Grace must navigate skepticism from both his colleagues and the Palace to uncover the truth behind a sniper attack and a subsequent murder.

This paperback edition, written by Peter James, plunges readers into a high-stakes investigation where failure is not an option and time is running out before a killer strikes again within the Palace walls.

• Features the return of fan-favorite detective Roy Grace.
• The investigation begins after the Queen's Royal Train is derailed, followed by the shooting of a trusted aide by a sniper.
• Roy Grace suspects the Queen was not the intended target, putting him at odds with official investigations.
• The stakes escalate with a second murder, placing Grace in mortal danger.
• From the number one bestselling author with 23 million books sold.

This is the Main Market edition of the novel, presented in paperback format.

• Author: Peter James
• Binding: Paperback
• Language: English
• Print Length: 512 pages
• Publication Date: April 9, 2026
• ISBN-10: 1529090083
• ISBN-13: 978-1529090086
• Dimensions: 130 x 33 x 196mm (Approx. 5.12 x 1.30 x 7.72 inches)
• Weight: 339g

Experience the masterful crime writing praised by Lee Child and Karin Slaughter in this thrilling Roy Grace novel.