111 pp, 7" H. One of the Macmillan Topliners series. "Gill was an ordinary girl - doing her first job - living with her family on a new housing estate. All the things she did were ordinary too - until the day she took a dare to ride a motor-bike - and crashed! Then strange things happen - Gill gets taken on a journey into the savage past. When she recovers consciousness and lands in the hands of a sinister woman doctor, Gill is faced with a life-and-death struggle with the 'String of Time'. The fascination of science fiction, the chilling suspense of a thriller and the human touch of a novel are all here." Interior - very light browning in gutter of pages, very small soft crease at fore-edge of pages 1 to 38. Exterior - minor edge wear, small soft crease at fore-edge of front cover, crease ar top corner of rear cover, minor rubbing.