The Missing Twin book by Alex Day

"The Missing Twin" is a psychological thriller novel authored by Alex Day. The book was published by Killer Reads, an imprint of HarperCollins Publishers based in the United Kingdom. As a major global publishing entity, HarperCollins typically prints its UK editions within the United Kingdom or occasionally in other European territories for mass market distribution.

The publishing brand, Killer Reads, was established specifically as a digital-first and genre-specific imprint under the HarperCollins umbrella to focus on crime and thriller fiction. HarperCollins itself has deep historical roots in both Scotland and the United States, following the merger of William Collins, Sons and Harper & Row. Today, it operates as a major subsidiary of News Corp, a global media conglomerate owned by the Murdoch family, ensuring its books are distributed across international markets including English-speaking territories like the US, Canada, Australia, and New Zealand.