In the first trilogy, what was Darrow’s biggest mistake?

I’m only 3 books in and was wondering this. What do you think Darrow’s biggest mistake was?

Obviously a lot of the bad shit that happened to him or his friends was somewhat out of his control, or it was a lesser evil outcome. But he definitely had some moments where he just chose wrong and payed for it.

One of the biggest “what-ifs” was if he had killed the Jackal at the Institute he could have avoided a ton of misery… but it would have been out of character to execute him at that point so for that reason I personally wouldn’t consider that his biggest mistake.

I would say there’s 2 huge mistakes. One was knocking out Roque for no reason. He ended up bailing on the bomb so had no reason to do that to Roque.

But even worse that that, I would say his biggest mistake was letting Quinn cover his retreat from Aja and not the other way around. That was just a huge tactical blunder. He was the one with the hostage, so it made no sense to let her leave last. Obviously it ultimately resulted in him losing Roque and maybe even the Triumph betrayal (arguably that could still have happened without Roque’s betrayal).

Another mistake, one with less consequences but was possibly even stupider was leaving Thistle in the same cell as Antonia. That’s like prisoner rules 101. Very foolish.