Yon Ill Wind — Piers Anthony

This Xanth villain is full of hot air. “Anthony's unflagging sparkle, verve and wordplay spin everyday trials of Mundane life into storytelling gold” (Publishers Weekly).
 
A fickle flux in the fabric of space has allowed a horrendous hurricane to blast into Xanth, stirring up mischief and madness wherever she goes. Trapped in a preposterous form by a cosmic wager, the Demon X(A/N)th must join forces with a vexatious vixen named Chlorine to save Xanth from this terrifying and tempestuous threat. Their companions on this haphazard quest are a hapless human family -- Jim and Karen Baldwin and their two teenage sons, David and Sean -- gusted into Xanth from the mundane world beyond. Together they encounter a host of turbulent misadventures as they struggle to keep Xanth from being blown off the map forever.
 
“Just the thing for pun-happy funsters.” -- Kirkus Reviews