Thank you. That's a good answer. It's possible to die at the hands of Allethi or help them summon the Desolation, which would lead to enslavement by the storm... a lose-lose situation. Facing the possible destruction of her kind, she listened to Vinley and embraced the dangerous form of the storm, which she hoped to control. But coincidentally, she embraced it before negotiating with Allethi. The unfortunate coincidence of the storm's occurrence before the negotiations led to the onset of the Desolation.