Gavardi acknowledged his fault and asked Magenta, who had finished his studies and was going home to Milan, to return them to Orazio. Having many more such works in his possession, Orazio gifted the 13 volumes to Magenta. When news spread of these lost works of Leonardo's, Orazio retrieved seven of the 13 manuscripts from Magenta's brother, and gave them to Pompeo Leoni for publication in two volumes; one of these was the Codex Atlanticus.[3]