Bandit Queen (S01E11)

Piero pressures Tom into stealing Leonardo's notebook, prompting Leonardo and Machiavelli to embark on a mission to reclaim it, substituting a copy filled with blank pages. Meanwhile, Lorenzo finds himself temporarily held captive by Belladonna, the notorious Bandit Queen of Florence, while Lisa, who has been trailing Leonardo, is captured by Piero as an accomplice. The boys manage to rescue Lisa and retrieve the notebook, successfully driving off Belladonna. However, they realize that Piero has discovered Verrochio's secret—employing a girl as a painter—unbeknownst to them that he has also duplicated the notebook.