The Veil of Corruption: The Virus of Beauty Book 2 by C.B. Lyall

Wilf isn’t a hero for saving the witches, instead he’s being accused of corrupting the Veil spell. Witches and wizards are disappearing as the spell weaves its way through the Magical Realm. The Council is blaming Wilf’s actions. There are still no sightings of his stepsister, Myra, but Wilf knows she’s hiding somewhere in Hong Kong. He’s vowed she’ll pay for murdering their father.