Late at night, the candlelight in the castle's laboratory was bright, and Isabel was buried in organizing a whole day's worth of experimental data.
Before Amberser returned, Isabel didn't have this much data to organize.
It wasn't because Isabel wasn't diligent enough, but rather because her speed in conducting experiments was far slower than Amberser's.
This Lich Teacher could control more than a dozen Mage Hands at the same time, operating like an entire production line by himself.
Not only that, but Amberser also had a much more solid foundation in alchemy than Isabel, instantly thinking of several different formulas as well as their related preparation processes.
Although he couldn't infer the final outcome of the potions out of thin air, every adjustment he made was targeted, so the experimental results Amberser obtained in a day were astonishing.
Isabel might not have this much data to record even over half a month.