Key Out of Time

by Andre Norton

"Key Out of Time" by Andre Norton is a science fiction novel published in 1963. Time Agents Ross Murdock and Gordon Ashe travel to the water-dominated planet Hawaika to investigate the mysterious alien Baldies. When a storm destroys their time gate, they become stranded in the planet's distant past and separated across unknown territories. Murdock must navigate alliances with seafaring Rovers, native peoples, and the last three members of the mystical Foanna race to reunite with Ashe and confront the Baldies' threatening presence.