Although Xisrith understood magic, her class was still that of a Swordsman, meaning that her skill tree didn't have any abilities that allowed her to use a Spellbook, meaning that it was useless to her.
So Kaizen needed to give it to a mage and, by coincidence, he knew the strongest elf mage in all of Midgard: Alina, the Librarian of the library in the basement of his store.
So, after leaving the Bloodstone Clan Crypt with their inventories overflowing with items, the first thing they did was to use a Teleportation Crystal to the Tretidian Capital, returning to the Raven Feather store.
