A New Queen Rises

Avalind and Cabral have been washed out to sea by a monstrous wave and the Hag has been destroyed. Or so it is believed. Baron Dumarrick takes up the reins of state, but only as regent. In Draal, the new king, Kurian, faces the sternest test of his sovereignty yet as a massive insurrection bears down on Zinal, intent on obliterating the Furaks forever. Meanwhile in the Kingdom, peace is still a distant ideal as a murderous new queen rises to launch an audacious bid for power. But who is she?
'A New Queen Rises' is the concluding part of the 'King's Head' Trilogy that began with Callin Vorst striking an unholy bargain with the Hag and ends with... what?