Mike Lee has 2 books in the Warhammer 40,000 catalogue, listed below in publication order with where each fits on the timeline.
Original summaries and chronology labels generated from the same catalog powering the atlas.
Mike Lee
A Horus Heresy novel centered on the Dark Angels Legion, continuing the storyline begun in Descent of Angels. It splits its focus between events on the Legion's homeworld of Caliban and its sons fighting far away, sowing the seeds of one of the setting's great betrayals. It is most meaningful for readers tracking the Dark Angels' arc through the series.
001.M31 - 014.M31
range date, medium confidence
First published 2009
Mike Lee
A companion piece to the events of Rynn's World, this novel narrows the focus to veteran Sergeant Sandor Galleas of the Crimson Fists during the catastrophic Ork invasion. Cut off behind enemy lines with his squad and a ragged band of human survivors, Galleas must fight the greenskins by any means as the Chapter teeters on the brink of annihilation.
667.M41 - 999.M41
era date, medium confidence
First published 2018