) Strange Killings: Strong Medicine #1–3 (co-written by Ellis and Mike Wolfer, art by Wolfer, 2003) also collected as Strange Killings: Strong Medicine (tpb, 72 pages, 2004, ) Strange Killings: Necromancer #1–6 (co-written by Ellis and Mike Wolfer, art by Wolfer, 2004) also collected as Strange Killings: Necromancer (tpb, 144 pages, 2006, ) Gravel (co-written by Ellis and Mike Wolfer, art by Raulo Cáceres, Óscar Jiménez and Mike Wolfer, 2007–2010) collected as: Bloody Liars (collects #0–7, hc, 192 pages, 2009, ; tpb, 2009, ) The Major Seven (collects #8–14, hc, 176 pages, 2009, ; tpb, 2009, ) The Last King of England (collects #15–21, hc, 176 pages, 2010, ; tpb, 2010, ) Gravel: Combat Magician #0–4 (written by Mike Wolfer, art by Gabriel Rearte, 2013–2014) Threshold #25–30: "Dark Blue" (with Jacen Burrows, anthology, 2000) collected as Dark Blue (tpb, 72 pages, 2001, ) Night Radio (unproduced 4-issue anthology series featuring serials by Ellis, Matt Fraction, Antony Johnston and Micaela Petersen, announced for 2002) Scars #1–6 (with Jacen Burrows, 2002–2003) collected as Scars (tpb, 164 pages, 2004, ) Warren Ellis' Blackgas (hc, 144 pages, 2007, ; tpb, 2007, ) collects: Warren Ellis' Blackgas #1–3 (with Max Fiumara, 2006) Warren Ellis' Blackgas 2 #1–3 (with Max Fiumara and Ryan Waterhouse (#3), 2006–2007) Warren Ellis' Wolfskin: Volume 1 (hc, 120 pages, 2009, ; tpb, 2009, ) collects: Warren Ellis' Wolfskin #1–3 (with Juan José Ryp, 2006–2007) Wolfskin Annual #1 (story by Ellis; written by Mike Wolfer, drawn by Gianluca Pagliarani, 2008) Volume 2 (hc, 160 pages, 2012, ; tpb, 2012, ) collects: Wolfskin: Hundredth Dream #1–6 (story by Ellis; written by Mike Wolfer, drawn by Gianluca Pagliarani, 2010–2011) Black Summer #0–7 (with Juan José Ryp, 2007–2008) collected as Black Summer (hc, 192 pages, 2008, ; tpb, 2008, ) Doktor Sleepless #1–13 (with Ivan Rodriguez, 2007–2009) Ellis has expressed interest in giving the series a definite conclusion but after several delays the final issue failed to materialize. Issues #1–8 are collected as Doktor Sleepless: Engines of Desire (hc, 216 pages, 2008, ; tpb, 2008, ) FreakAngels (with Paul Duffield, a webcomic serialized at freakangels.com between 15 February 2008 and 5 August 2011) collected in print as: Volume 1 (collects episodes #1–24, hc, 144 pages, 2008, ; tpb, 2008, ) Volume 2 (collects episodes #25–48, hc, 144 pages, 2009, ; tpb, 2009, ) Volume 3 (collects episodes #49–72, hc, 144 pages, 2009, ; tpb, 2009,