El Reto Del Astrónomo [The Astronomer's Challenge]

In our offices we have received a package this morning with a strange letter. It comes from the famous astronomer Fernando de Manfroto. In it he asks us to help him, he needs to find out the key to his old safe. He says he has kept it so well that he can't remember how to open it. She sends us in the package the suitcase where the password is stored. We have an hour and if we make it she says she will give us half of her big fortune. We don't have time to waste, I'll let the team know