Meet Fiona, whose sandcastle gets knocked over in the second of four books in the Hippo Park Friends series. For fans of Cori Doerrfeld. This second book in the Hippo Park Friends series-set in the playground, where the animals play just like preschoolers do-introduces Fiona the Hippo in her beloved sandbox. Fiona's a builder and a creator, and the castle she's worked on all morning is just about finished. But wait a minute, here comes trouble, in the form of a toddler who looks all set to invade her realm! Preschoolers will empathise with Fiona's heartbreak when her castle is ruined-and cheer her on as she shakes off her anger and starts a new project.