She is on loan from the London Zoo. She and a male dragon must mate within 72 hours or Victoria goes back to London and they go extinct. While she's in New York City, she is taken care of by the zookeeper Appleby.
Francis Grimes acts as a dragon tamer and is in charge of their mating, and he brings them to Mark Lilly's class for help. Since Victoria and the male both find each other repulsive, Mark uses his "power of influence" he got from Leonard Powers' engagement ring to make them mate.
After the two magical engagement rings have been deactivated, Leonard throw them down a river of lava. The male dragon catches the rings in midair and gives one to Victoria. And they are finally attracted to each other.