Dragon Harper. Anne McCaffrey, Todd McCaffrey (Dragons of Pern)

Blurb

Dragon Harper is a science fiction novel by the American-Irish author Anne McCaffrey and her son Todd McCaffrey, in the Dragonriders of Pern series that she initiated in 1967. Published forty years later, it was the twenty-first in the series.
Dragon Harper may be considered the last of a trilogy by the McCaffreys, following Dragon's Kin and Dragon's Fire. Primarily the three books feature Kindan as a boy and young man, about 500 years after landing on Pern. They were the first collaborations by mother and son.