The Heiress of Duniyasar. Curse Words: Spellcasting for Fun and Prophet, #3

Kayden expected their radical use of theoretically impossible magic to result in a bit of unwanted attention. He was prepared for random mages coming out of the woodwork to try to figure out exactly how they'd done it. But as it turns out, Kayden's new bond with Kylie isn't the biggest issue that Dorm Australia finds themselves having to deal with. When secrets about Kylie's past come to light, the group find themselves having to walk a careful political tightrope, a problem only exacerbated when it turns out that Kayden has other friends who aren't exactly the people they've been pretending to be.
When Kylie prophesies the assassination of a member of one of the most powerful families in Refujeyo, it's up to Dorm Australia to find the assassin before they can enact their plan and plunge mage society into war.