Copying a scroll of Fireball into her Spellbook
Cost: 90gp
Need to succeed in a Spellcraft check (DC 18) to understand it.
Looks like that worked so please add the spell, subtract the cost of inks etc and delete one scroll of Fireball from her inventory.
Roll:
Melody Capella
(Spellcraft):
21
= 1d20 [6] + 15
— Fireball