La invención de Morel (; 1940) — translated as
The Invention of Morel or
Morel's Invention — is a novel by
Adolfo Bioy Casares. It was Bioy Casares' breakthrough effort, for which he won the 1941 First Municipal Prize for Literature of the City of
Buenos Aires. He considered it the true beginning of his literary career, despite being his seventh book. The first edition cover artist was
Norah Borges, sister of Bioy Casares' lifelong friend,
Jorge Luis Borges.