More!
It wasn't their fault, it was my chariot's insane speed that made the threads reach a terrifying length in matters of minutes.
I had to not only keep them intact, I also had to direct them to attack the nearby monsters.
The hardest step was this first step. After taking control of these monsters, then expanding my threads didn't need my control or guidance at all.
I just had to force my energy through them, to make them keep controlling more.
But that was done on such a wide and terrifying vast scale I never did before. In the span of ten minutes, the bones that could satisfy my needs for many hours were depleted.
"More!" like a crazy person I shouted, while bringing much more bones. This time I didn't just bring bones once. As the first batch turned into light bulbs, I summoned another batch of bones and did the same to them.
Then another batch appeared and another. I kept doing this like I had a bottomless pit of bones.