No, Halthzor owed Alan one in Rescue Mission as well, since Alan led the rescue party that saved Halthzor from his cousin, Scwinthzor.
We never wrote the story where Halthzor pays off his debt of honor, but a later son born to Halthzor is named Alanthzar, in honor of Alan Westover. Naturally Halthzor didn't exactly explain that to his peers. <g>
