Two Puerto Rican tree frog siblings learn about science and social studies topics during their adventures on their island home. In this chapter book series, Rafi and his younger sister, Rosi, explore their surroundings and learn about the traditions, plants, animals, and environment of Puerto Rico. Young readers will enjoy the adventures of these curious siblings and will relate to their special bond as brother and sister. An added plus is the sprinkling of easy Spanish words that add flavor to the stories. In Rafi and Rosi , Rafi amazes Rosi with the magic he finds everywhere. He can move sand with his magic fingers. He can shoot stars from the sky. He can even find the smallest tree in the forest. Then one day Rafi's pet hermit crab runs away. Now it's Rosi's turn to show that she knows where to look for magic too. Can she find the crab in time for them to watch it shed its shell? "Delacre closes each episode on a note of harmony, and casts her sibs as clothed coquis (small frogs) who, despite some teasing, plainly think the world of each other.... Sweet. " -- Kirkus Reviews "The teasing banter and tender rapport between the siblings are the most appealing features of these stories. Delacre's brightly colored cartoon illustrations add detail and a light touch. " -- School Library Journal Lulu Delacre , three-time Pura Belpré Award honoree and winner of an Orbis Pictus Honor, is the illustrator of numerous award-winning books, several of which she also wrote or compiled. Her books include fiction and nonfiction and range from picture books to young adult titles. Delacre was born and grew up in Puerto Rico, where she loved to draw pictures, enjoy nature, and partake of the culture and traditions of her native island. Her experiences there are the inspiration for many of her works. Delacre and her husband live in Washington, DC. Learn more about luludelacre.com. Lulu Delacre , three-time Pura Belpré Award honoree and winner of an Orbis Pictus Honor, is the illustrator of numerous award-winning books, several of which she also wrote or compiled. Her books include fiction and nonfiction and range from picture books to young adult titles. Delacre was born and grew up in Puerto Rico, where she loved to draw pictures, enjoy nature, and partake of the culture and traditions of her native island. Her experiences there are the inspiration for many of her works. Delacre and her husband live in Washington, DC. Learn more about luludelacre.com.