When ten-year-old Libby Thump stumbles upon High Hopes Horse Farm and finds her dream horse, Princess, a prize-winning jumping horse that has been put out to pasture, Libby tries to convince her parents to give her riding lessons. Interest Level: 3-6 Reading Level: 4.6 ATOS Book Level: 4.6 AR Interest Level: MG AR Points: 4 AR Quiz: 152358EN Reading Counts Level: 4.5 Reading Counts Points: 7 Lexile Measure: 730.