A group of random people receives notice that they have won a cruise. Once they become passengers onboard the Malcolm, they find themselves tangled in the web of a mystery that is as symbolic as it is ludicrous. The feeling of detachment from ones normal life, typical of vacation cruises, motivates the travelers to undertake the search to resolve the enigma. The enthusiasm and freedom with which the characters dive into the game, and risks they take could only come from the imagination of one writer: Cortzar. Spanish Description: Los pasajeros que se embarcan en el Malcolm para un crucero de placer se ven envueltos en un misterio que tiene tanto de alegorico como de disparate colosal. La ilusion de un corte con la vida anterior, propia de los viajes, incita a este grupo de hombres y mujeres a lanzarse a la exploracion del enigma y al conocimiento mutuo. Y lo hacen con el aplicado entusiasmo de un juego, con la libertad y el riesgo que solo Cortazar sabe concederle a sus personajes.