Graham McNeill has written more Horus Heresy novels than any other Black Library author! His canon of work includes Vengeful Spirit and his New York Times bestsellers A Thousand Sons and the novella The Reflection Crack d, which featured in The Primarchs anthology. Graham s Ultramarines series, featuring Captain Uriel Ventris, is now six novels long, and has close links to his Iron Warriors stories, the novel Storm of Iron being a perennial favourite with Black Library fans. He has also written a Mars trilogy, featuring the Adeptus Mechanicus. For Warhammer, he has written the Time of Legends