Sylvie's favored form was that of a 12-year-old girl, with blond
hair and large, innocent blue eyes. She appeared pre-pubescent in this
form, and stood about 4'11" tall. Her older form was that of an
18-year-old woman, with slightly darker blond hair, wiser eyes, and full
development in body. In this form, she stood 5'6" tall.
to Mer's game