S.P.I.R.E. Decodable Reader Gus and His Pup (Set 1B) The S.P.I.R.E. Decodable Reader Gus and His Pup (Set 1B) is a book written in English. The book follows the story of Gus, a character who feels lonely and discovers a new addition to his family in the form of a playful pup. It is a part of a series designed to help children learn to read by decoding words and phrases using context clues. The book is likely engaging and would be a great addition to any child's reading collection, providing both entertainment and educational value. U30082