Fart a la Carte is a pranking elixir that was mentioned when Fitz was telling Sophie secrets for a trust exercise. On page 251 of Everblaze, it was said that Fitz put some in Biana's breakfast right before her Level One Opening Ceremony, which gave Biana a bad case of smelly gas during her performance. It is an elixir from Slurps and Burps as said in Book 8.5, Unlocked.

Keefe also is thought to have used it many times in his pranks around Foxfire.

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