In this first book, A.J. and his friends at Ella Mentry School are headed on a field trip to NASA headquarters. But their tour guide, Mr. Corbett

"A.J. and his friends are visiting New York City! They're hitting all the classic tourist stops--Times Square, Radio City Music Hall, the Met, an

"A.J. and his friends have the chance to win a trip to Dizzyland--if they can finish 5,000 books first. Dr. Carbles, the evil president of the Bo