In "The Penultimate Peril", Colette was present at the Hotel Denouement where she posed as a chemist in a long white coat and surgical mask staying at the Hotel Denouement that is outside of the sauna when Frank or Ernest Denouement suggests that she takes Sir and Charles to room 547 where Organic Chemistry is. During the blindfolded trial, Colette submitted some drawings as evidence. When Hotel Denouement was starting to catch on fire, Hugo, Colette, and Kevin were last seen holding the bird paper that Klaus hung on the outside of the sauna. Colette talks about plucking the feathers off some crows. It is left uncertain if Colette survived the fire at the Hotel Denouement.