Those electronic tonalities you hear are the United Planets cruise c-57-D emerging from hyperspace at  to investigate the fate of the Bellerophon expedition.  The Bellerophon was supposed to be exploring the fourth planet of the great main sequence star Altair, but we have it on good authority that they actually ended up at Beastly Books on Montezuma Street in Santa Fe, NM, Land of Enchantment.

We are sure that Dr. Morbius , his lovely daughter Altaira, and Robby the Robot will make them welcome...