Scientists discovered that a fungal enzyme from the black poplar mushroom (Cyclocybe aegerita) can produce two different types of beneficial compounds called terpenes. Using a baker’s yeast relative as a host organism, they found that the enzyme makes both a known sesquiterpene and an entirely new diterpene compound they named cyclocybene. This discovery shows that fungi can be better factories for producing these valuable compounds than bacteria previously used, opening doors for developing new medicines, fragrances, and biofuels.