This book was about a wealthy girl in ancient Egypt(?) who has a means of exchange (maybe rings) and goes to the market to buy whatever she wishes. She ends up purchasing a slave girl with her money. The story is about their lives together.
Stump the Bookseller
New format, same book stumper solving.
This is definitely Boy of the Pyramids by Ruth Fosdick Jones (1952). The wealthy protagonist, Kaffe, is actually a boy but then slave he purchases with his copper rings (Sari) is a girl.
“At any time and in any place, when there is a mystery to be solved, a ten-year-old boy will want to have a hand in it. So it was with Kaffe, an Egyptian boy of long ago. With his friend Sari, a slave-girl, Kaffe had many adventures-the harvest feast, the fight of the bulls, the flood. Then came the mystery of the pyramid’s missing jewels and a dark night when Kaffe, his father, and Sari set out to catch the thief.”