Twins Kiera and Fran fight over everything. Now they have something new to fight over: a pony. Ever since the girls took horseback riding lessons on Radish, they have been dreaming of having a pony of their own, even if it means they have to share it. When Dad brings home Jigsaw in his mail-car, the girls are thrilled. “Jigsaw was an expert on girls. He knew these were good ones.” These likable but argumentative sisters (one calls the pony “Midnight” and the other calls him “Snowflake”) have to learn to share their pony. They soon draw up a chart and divvy up all assignments, from stall cleaning and saddle soaping to watering. While Jigsaw goes along with everything the girls cook up, something is wrong with him that troubles the girls. With ample horsey details, generous white space, large typeface and a predictable but exciting story line, Haas’s true-to-life story is one young horse lovers and young readers alike will enjoy. (Fiction. 6-9)