Cambridge Experience Readers is a graded readers series of original fiction, adapted fiction and non-fiction especially written for teenagers. Marvin lives with his parents and a grandfather who is always inventing new gadgets to help his family. But his grandfather's inventions often end up making Marvin's life harder. Then one particular invention proves a success but it also attracts unwanted attention from a school bully. This paperback is in American English. Audio recordings of the text are available on our website at: www.cambridge.org/elt/discoveryreaders/ame Cambridge Experience Readers, previously called Cambridge Discovery Readers, get your students hooked on reading.