John Duncan Yoyo wrote:

> Creature with wheels just reminded me of Piers Anthony's Sci-Fi series
> Cluster {Cluster (1977), Chaining the Lady (1978), Kirlian Quest
> (1978), Thousandstar (1980), Viscous Circle (1982)}.  I do mean Sci-Fi
> as opposed to SF.

If anything, the wheeled creatures remind me of the Sector General stories 
by James White - they had to keep moving because that was what kept their 
blood circulating.

Bruce
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