The books Kroya had purchased in this batch utterly engrossed him.
For more than ten days straight, he shut himself away in his laboratory and living quarters without once going out.
Aside from eating, sleeping, and using the bathroom, all he did was study.
The mysteries and pleasures of magic truly kept him hooked.
Level-three and level-four spells were far harder to learn than the level-one and level-two spells he had studied before. Some even required him to learn prerequisite spells.
One example was the Fireball Spell, which he had always found easy to use.
Its advanced form was called Chain Fireballs.
Depending on the caster's mana reserves and control, it could release fireballs continuously.
After researching it with the help of the Voidmoon Divine Tree, Kroya discovered that this spell seemed to consist of two different spell inscriptions combined-
The basic Fireball Spell and the Multiple Casting Spell, which maintained a stable flow of mana to sustain repeated casting.
The latter was actually a level-four spell, also recorded in this comprehensive spellbook.
Honestly, this spell was much harder to learn than Kroya's Crimson Rondo, and its effects were not as good either.
At most, it could only cast a spell twice in succession.
Once he discovered this, he became intensely curious.
Why could a level-four spell like this be linked to a level-one spell like Fireball? Why did combining it with the Fireball Spell actually make it easier to cast?
He felt that thoroughly researching this subject would greatly improve his ability to inscribe spells onto magical beasts and magic plants in the future.
After researching and comparing them, he gazed thoughtfully at the three spell models for the Fireball Spell, Chain Fireballs, and Multiple Casting Spell.
"This seems to be a property."
Kroya murmured to himself, "If Multiple