User:SOTO/Forum Archive/The Panopticon/@comment-4139960-20130410195554/@comment-1398253-20130418015248

Despite being released in threes, Torchwood's books do have a specific order. I just picked up eight of them from a charity shop, and the list of previous novels is numbered. Also, as Tangerineduel mentioned, the spines of each set of three line up to form a picture of the team.