I found this one more entertaining than books 2 and 3, so 3 stars. But I think that was just because there was more Darius.
Can't have a Protector Guild book without Team Six being suspicious of Max for reasons that clearly make zero sense, so check there. And can't have one without Declan blindly following Atlas, again for no reason, so another check. But dear god, at least we finally got a proper sex scene.
The pacing for this series is just too slow. Four books of hints that Max is obviously not just a protector, but we still don't know what she is. Four books in, and there's still no over-arching plot. It just sort of meanders, and mostly what we read are the characters thoughts and emotions. More than half-way through the series, and I should have some clue as to what the main plot is, what the endgame is, but I don't. Is it that the protectors are actually the bad guys, and we need to bring down the Guild? Are we trying to save hell, destroy it, or just keep ignoring it? Are we supposed to send the monsters back to hell, forge an alliance with them to stop the Guild, or use their blood to make stronger protectors? Are we trying to bring back the natural bonds, or is that just a fluke that was mentioned in book 1 that is some weird quirk of Max's that doesn't matter?
Everything about this series is too slow, from the plot to the harem to the peppers. I'll keep reading because these are very short, simple reads, but with every book I finish, I'm even less invested in the characters than the one before.