>This would almost certainly have had to have been a Dragonlance novel,
>of which there were ten in publication by the end of 1987. There is a
>small, outside chance it was one of the two Greyhawk novels, or the
>single Forgotten Realms novel, available at the time, but weight of
>probability says Dragonlance.

Strictly speaking, by the end of 1987, there were six Greyhawk books out, 5 by Gygax and one by Andre Norton, Quag Keep, though that one would've been about years old by that time, so probably not it. As an aside, Quag Keep was the first D&D novel ever.

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Stoke Mandeville, Esq & The Victorian Ballsmiths
"Nobody Want Verdigris-Covered Balls!"