Where is Simon, Sandy? The Story of a Little Donkey That Wouldn't Quit by Donna Marie Seim, illustrated by Susan Spellman (PublishingWorks, 2008).
Based on a folktale from the Turks and Caicos, this is a story about a man named Simon who delivers water with his donkey Sandy everyday. When Simon falls ill, it's up to Sandy to save the day. The illustrations really capture the beauty of the Caribbean.