Vixen's Haunt by Frankie Calvert
Vixen's mother left home when she was born, and Vixen lives quite happily on her own with her father. Every now and then, Vixen's mother visits. But when she comes to visit unexpectedly on Vixen's 13th birthday, and then again soon after, it starts up a series of events that leads Vixen into an unexpected adventure and a most unlikely outcome.