In the book "Second Sister", a librarian investigates her sister's suicide as a murder, using her cybersecurity skills to uncover a dark digital underworld of online bullies and sexual predators in Hong Kong. \n Format: Paperback / softback\n Length: 512 pages\n Publication date: 12 November 2020\n Publisher: Head of Zeus\n When Siu-Man leaped from her twenty-second-floor window, it was assumed to be a suicide. However, Siu-Man's sister, Nga-Yee, a quiet and unassuming librarian, is determined to prove it was murder. The police are uninterested in re-opening a solved case, so she contacts a man known only as N, a hacker and an expert in cybersecurity and manipulating human behavior. What follows is a cat-and-mouse game through the vibrant city of Hong Kong. The pair's investigation takes them from creepy commuter-train gropers to Siu-Man's gossipy friends to the dark corners of the city's digital underground, where online bullies, sexual predators, and shady tech businesses stalk their prey.Reviews for Second Sister:New York Times: "Second Sister moves at a breathtaking pace and, with its bounty of high-tech hazard, excites like a vintage Tom Clancy novel."Wall Street Journal: "An important, multidimensional, and even educational read into the dangers of cyber bullying."The Straits Times: "Sharp-witted and intense... Dangerous feuds, cybertheft, and a predator stalking Hong Kong."Booklist: "Dangerous feuds, cybertheft, and a predator stalking Hong Kong."\n Weight: 362g\n Dimension: 130 x 197 x 35 (mm)\n ISBN-13: 9781788547130\n \n