El elixir de la vida (The Elixir of Life) is a 1973 comic from the Spanish series Mortadelo y Filemón, and the seventeenth long adventure in the series.
The Super summons Mortadelo and Filemon with an important mission: Professor Von Nassen, recently escaped from prison, has created an elixir that grants life to inanimate objects, which he can then use to commit all sorts of crimes. The two agents must find Von Nassen and arrest him before he can cause too much trouble with his crimes.