With the help of a magic fountain, Amarillis takes on the likeness of Amoret. The disguised Amarillis makes advances on Perigot, convincing him that his Amoret is unchaste. Bitterly disappointed in his love, Perigot stabs the real Amoret.
Amarillis, with the help of a magical fountain, assumes Amoret's likeness. The disguised Amarillis pursues Perigot and persuades him that his real Amoret is unchaste. Perigot, betrayed by this deception, stabs the true Amoret.