Alex's mother asks him to take his younger sister Lorena out. When he is with her, he sees some friends. Alex doesn't want his friends to see him with his little sister, so he tells her to wait while he speaks with them. But when he comes back, Lorena is not there. Where is she?A series of colorful, high-interest written readers for ESL students and striving readers, Foundations contains carefully sequenced vocabulary and grammar presented contextually through the adventures of a group of teens living in a small U.S. town.
