Most people think of Leonardo Da Vinci as some old guy painting stuff hundreds of years agoyet even Da Vinci was once a bold, troublemaking kid who craved adventurethis is his story! Young Leo has spent his childhood exploring art and engineering (and creepy caves) in the freedom of his hometown. But when his long-lost dad drags Leo to an apprenticeship far away, our boy genius soon finds himself out of his depthand in a city on the brink of war! Fortunately, Leo also finds two new friends who change his life forever: Tano, a charmingly clumsy chum from Africa, and Filomena, a pre-teen patron who funds Leos latest inventions and always wears a mysterious smilethe smile which will inspire Da Vincis most famous portrait. Together, Leo, Filomena, and Tano uncover a deadly conspiracy that threatens the entire worldonly nobody believes them, since theyre just kids. So Leo and his pals must grab everyones attention the only way they know howwith elaborate p