Avsnitt 11

After Piero has coerced 'Tom' into stealing Leonardo's notebook Leonardo and Machiavelli set out to recover it,planting a copy with blank pages. Meanwhile Lorenzo is temporarily held to ransom by Belladonna, the Bandit Queen of Florence,and Lisa,who has followed Leonardo,seized by Piero as an accomplice . Though the boys succeed in retrieving Lisa and the book,as well as seeing off Belladonna, they are aware that Piero now knows that Verrochio is illegally employing a girl as a painter - but unaware that he has made a copy of the notebook.