Hellhound Magic — Sharon Green

WHERE SPELLS AND SHAPES SHIFT --
When Laciel the sorceress returned home after completing her quest for the Balance Stone, it was to find Morgiana her mentor, and foster mother gone, and only the wizard Graythor and the shape-changer Rik awaiting her. Then the beast Inthig materialized, bringing word that Morgiana was in danger, held captive on a distant world as the High King's consort.

So sorceress, wizard, and shape-changer set out to rescue Morgiana. But the Gates they passed through led to worlds of peril. And most perilous of all was the High King's realm--where hellhounds stalked the unwary an a sorceress' own magic could too easily be turned against her....