"The Doctor goes undercover at a prisoner rehabilitation facility held within a collapsing singularity--a place where the scientists claim to 'cure' murderers and psychopaths by removing all of their negative emotions. But the Doctor's dark side, and Time Lord physiology, give birth to a horrendously real 'id' that rampages through the station. Has the Doctor's carefree approach to planning finally met a threat that he can't charm or think [his] way out of?"--Amazon.com.

Cavan Scott is a writer, editor and producer of over 60 books and audio dramas, including the Sunday Times Top 10 Bestseller Who-ology - The Official Doctor Who Miscellany. Beyond Doctor Who, he has written for The Sarah Jane Adventures, Judge Dredd, Warhammer 40,000, Pathfinder, Adventure Time, Blake's 7 and many more. He is currently co-writing the bestselling Star Wars: Adventures in Wild Space series for younger readers. He was the co-writer (with Mark Wright) of the Ninth Doctor audio adventure 'Night of the Whisper' and continues to write for, and produce, Big Finish audios for Doctor Who and more!

Adriana Melo is a Brazilian penciller and inker, with notable titles such as Star Wars: Empire, DC'S Rose & Thorn and Birds of Prey and recently on Ms. Marvel. She is also a rising star, producing incredible fan art and cover art that has achieved global acclaim! Cris Bolson is a Brazilian artist who has found fame working on titles like Red Sonja, Hercules and The New Avengers. Marco Lesko is a colourist whose work can be found in Titan Comics' Assassin's Creed: Uprising, Torchwood and Peepland.