Os Cantores do Tempo (Coleção Argonauta #460)

The Singers of Time by Frederik Pohl & Jack Williamson (1991) '-'
When the conquering aliens on Earth find out that their home planet has been destroyed, they turn to the humans--whom they have long treated as intellectually inferior--for the scientific help they need to rescue their planet....!

Earth has been immeasurably changed by the arrival of a superior alien race. Dubbed "Turtles" by humans, they have conquered Earth without a fight. Who in his right mind would oppose the bringers of peace and plenty of trade goods?

Frederik George Pohl, Jr. was an American science fiction writer, editor and fan, with a career spanning over seventy years. From about 1959 until 1969, Pohl edited Galaxy magazine and its sister magazine IF winning the Hugo for IF three years in a row. His writing also won him three Hugos and multiple Nebula Awards. He became a Nebula Grand Master in 1993.

John Stewart Williamson who wrote as Jack Williamson (and occasionally under the pseudonym Will Stewart) was a U.S. writer often referred to as the "Dean of Science Fiction".

Ficção científica / Literatura Estrangeira / Romance