Frank Frazetta's Tales of Science-Fantasy #3

Synopsis

Shortly after their arrival on a low gravity planet, human settlers stumbled upon what was thought to be the greatest discovery of all time: huge alien temples believed to be the tombs of a long-dead civilization of gigantic aliens. Now, decades later, after expanding throughout the planet, explorers make a startling discovery: what was thought to be long dead will soon return. Giants will again roam through these lands.