Key Out of Time is a science fiction novel by American writer Andre Norton, set on the world, Hawaika, that appears to be a tropical paradise.

In the present day, Time Agents Ross Murdock and Gordon Ashe come with settlers to the water-dominated planet, Hawaika, to search remains from the distant past of the alien Baldies.

While setting up their time gate, a storm destroys it and strands them in widely separated locations in Hawaika's unknown past.

In a final encounter, Murdock is teleported into a Baldy ship like the one familiar to him from Galactic Derelict, and sets its course to a random destination.

Kirkus Reviews, strongly supportive after following the series for years, writes Again, Andre Norton, one of the greats among writers of teenage science fiction (Galactic Derelict, 1959, p. 658, J-316, for one), has employed [her] boundless imagination ... Owing to the author’s exceptional mastery of detail, and astute control of plot, Key Out of Time stands as a novel which should more than satisfy young science fiction fanciers and fanatics.Key out of Time was first published in 1963, and as of 2012, had been reprinted in 17 editions with cover changes, as well as twice in a combined edition with The Defiant Agents.