Book is very tight and square with the usual light bumping to spine ends (probably unread.) Age tanning is very mild and uniform (much less than expected for its age.) No stamps or writing. First endpaper shows a glue-stain which bled slightly into front flap - possibly a bookplate was removed? 3/4" tear at upper right corner of front cover (neatly repaired with tape on backside); light wear along top 1/4" of front cover.

The Waters of Centaurus (1970) - sequel to Sibyl Sue Blue (which had the title Galactic Sibyl Sue Blue in paperback.) Rosel George Brown was the author of this pair of novels, a collaboration with Keith Laumer (Earthblood), and a score of stories in the late Fifties and early Sixties, (12 of which were collected as A Handful of Time.) She died in 1967.

The Sea King was handsome, perhaps the most overwhelming male personality that Police Sergeant Sibyl Sue Blue had ever met... but he wasn't human. He did not react in human ways, for his emotions were as alien as his logic... even his love was strange to an Earthwoman. His love... and his hate. The Sea King did know hatred, and his hate was big enough to defy a race from across the stars. It was up to Sibyl Sue Blue to prevent that hatred from destroying her own love - her daughter, Missy.