While Marinette is away, Shadow Moth creates a sentimonster that infects the robot Markov with a digital virus. This virus forces Markov to re-akumatize into , who then demands the heroes' Miraculous as part of a calculated trap. Key Highlights

In the Miraculous: Tales of Ladybug & Cat Noir episode (Season 4, Episode 16—though often listed as Episode 18 in different regions), Marinette is forced to trust someone else with her Miraculous for the first time. Plot Summary

Marinette has to leave Paris for a family trip to visit her aunt in London. Worried about leaving the city unprotected, she entrusts the Ladybug Miraculous to her best friend, , who transforms into a new superhero named Scarabella .