Complex sentence: Unfortunately, its value doesn't increase as rapidly as she anticipated, and when she's unable to pay her debt, her contract is sold to Mrs. Cherry, a grandmotherly-type who operates a prostitution ring.
Split into simpler sentences: Unfortunately, its value doesn't increase as rapidly as she anticipated. When she's unable to pay her debt, her contract is sold to Mrs. Cherry, a grandmotherly-type who operates a prostitution ring.