Harry get excited after he and the class watch the moon through their new telescope. Harry doesn't want to just watch anymore, he wants to go there.
When Harry finds an ad in the paper for a used telescope, Miss Mackle suggests that the class raise money to buy it. The telescope will make their moon study unit even more exciting Once they get the telescope, the class can have a nighttime moonwatch. But Harry wants to do more than watch the moon-he wants to go there Can Harry really take a trip into outer space?

"There's laughs aplenty in the short snappy text-just the thing to turn new readers on to books." (Booklist)