 After the Cullens' vampire cousin, Irina, mistakes Renesmee for an immortal child (a forbidden creation in the vampire world), she reports it to the Volturi.Alice foresees the Volturi arriving to destroy the Cullen coven for the alleged transgression.The Cullens gather vampire witnesses to verify Renesmee's mortality, only to realize later the Volturi always intended to destroy their coven and recruit Alice for her foresight ability.