: The Spanish edition, translated by Julio Hermoso Oliveras and brilliantly narrated by Alberto Mieza , is available with a listening length of approximately 14 hours and 42 minutes Availability : You can find the audiobook on major platforms like Special Release complete trilogy pack (containing El Cuarto Mono La quinta víctima La sexta trampa ) is scheduled for release on April 15, 2026 Amazon.com 🔥 BIG NEWS for 2026: J.D. Barker has officially announced a new prequel trilogy ! The first installment, titled The First Scarlet Door , is set for worldwide release on September 22, 2026
📍 Beware of unofficial "updated" download links (like those labeled "m4a upd") on file-sharing sites, as they often contain malware or low-quality rips. Using official stores ensures you get the latest high-bitrate audio and supports the author. The Fourth Monkey by J.D. Barker - Audiobook - OverDrive jd barker el cuarto monom4a upd