Yvette and her mate Henri are brought by the Volturi to witness the Cullens' destruction as punishment for creating an immortal child. They eventually find out that the supposed immortal child is a half-human half-vampire hybrid. When Aro explains that the child poses a threat to exposing their secret to mankind, Yvette and her mate seem easily persuaded, but when another hybrid, Nahuel, describes his traits and how he has managed to stay hidden in their world, Aro declares that the child poses no threat to them after all. After the situation was cleared peacefully, Yvette and her mate leave the field with the rest of the Volturi and witnesses.
In Alices vison Yvette is first sceen grabbing Leha by the neck and trying to strangle her, however Lea slungs her to the side. Rosealie jumps onto her back and grabbs her arm and pulls it off . She falls to the ground were Kate electricts her making her scream. Henri hears her but is to bussey trying to kill Bell . Leha ripps of her head with her teeth. Kate walks up to her with a torch and sends her ablaze. Though the vision never happend so she lived.
Yvette is noted to have curly dark-brown hair and a head shorter than her mate Henri.
Janelle describes her character as a "French bad-girl vampire".