Book excerpt: Eric Carle joins the Penguin Young Readers! In this classic and heartwarming story, a very lonely firefly finally finds the friends he is seeking at the end of a tireless search for belonging. Carle's rich, collage-like art and gentle text will be comfortingly familiar to his millions of fans. An accessible Level 2 reader, The Very Lonely Firefly is one that parents and children will read over and over again.