Peace Talks (novel)

Even as he does, he discovers that forces in the mortal world are moving against him and Karrin Murphy, the White Council may be meeting to expel him, something in collusion with Outsiders is trying to kill him, and his grandfather, Ebenezar McCoy, wants to take Maggie away from him to someplace safe until she can grow into her magic.

Lara Raith uses favors from Mab to force Harry into springing him, and they do so right during the middle of the peace talks for the Fomor to join the Accords.

Arriving just as Harry and Lara are escaping, King Corb of the Fomor declares open war on the surface and humanity, and introduces the last Titan, Ethniu, who is in possession of the Eye of Balor and effortlessly humiliates Mab and intimidates almost all other present parties.

He has to outwit his grandfather McCoy; after a fierce duel, Harry finally reveals that Thomas is his brother, much to the older wizard's utter disgust and rage.

Harry easily overpowers her with the aid of the island's spirit, and the two agree to an uneasy truce to face the greater threat, not having the resources to save Thomas on hand anyway.