Tethealla posted... crimsonblade01 posted... I can confirm Ancient Daedala does not drop them. I got the chest and reloaded it 10x, he don't drop it. He drops ice gems for heat sink, that is all.
For future reference, doing something luck-based 10 times is not a good test at all. The number of attempts should be much much higher before you determine the item drop isn't possible.
Actually 10 times usually is a good test to determine a non-rare drop, I was just super unlucky. Skill books are generally more rare, especially if you are looking for a specific one, and it might take 50 reloads to find one of those.