Greylorn

Earth is doomed.

A scourge called the Red Tide is devouring the planet.

The only hope of the dying population is to find a lost colony in the stars.

However the starship Galahad sent to find that colony has a problem.

Mutiny!

Commander Greylorn must bravely deal with a discouraged crew . . .

And then even a bigger problem.

Dreadful aliens called the Mancji living in a high-G environment who seem to have developed a taste for human flesh.

Keith Laumer hit the spaceways running in this, his first of many tales of science fiction action and adventure.