Grim-darkness fatigue
Both Know No Fear and Fear To Tread are excellent must-read books if you’re a fan of either the Ultramarines or Blood Angels respectively.
But man does the overtone of betrayal and repeating undercurrent of opportunity loss for individual characters, each Legion, and the Imperium as a whole make them a slog to read once the action really gets going.
Because you get a sense of this great, grand scale… where everyone and everything gets summarily fucked.
Yeah yeah I get it, ”In the Grim Darkness of the far future there is only war”.
But I can only take so much pointless death and betrayal at a time, man.