Teeth of the gale (Aiken, Joan)(Felix trilogy, Bk.3)(1988, paperback)

Don Francisco wants you home, and in double quick time too. We must leave tomorrow at dawn...

Felix’s heart sinks at Pedro’s words. What can be wrong? Is his beloved grandfather ill? Dashing and loyal, he speeds towards Villaverde - and a rescue mission.

Donna  Conchita’s children are kidnapped and Felix may be reunited with the feisty Juana, if he agrees to help. Despite warnings of a conspiracy and his own suspicions of a trap, Felix fearlessly plunges into a plot thick with intrigue and danger. His grandfather said it was a matter of life or death - but whose?