During the 10th Hunger Games, she oversaw the mentorship program, allowing her to steer Snow's actions. She later assisted him during his time as a Peacekeeper in District 12, solidifying their bond. Dr. Gaul was well known for the mutated creatures she created for the Games, such as the neon snake-mutts she made and dropped onto the tributes in The Ballad Of Songbirds & Snakes. More @Wikipedia
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