The Alpha-Maniacs have each received a clue for their next adventure, but the clues are in riddles. With the help of the Island's Switch-A-Roo, the Alpha's have to solve a series of riddles by changing out sounds of certain words. When they have solved each riddle they will find a grand prize.

This is the fifth book in a series about phonological awareness. This book focuses on the harder task of sound manipulation, adding or subtracting a sound to make a new word. The riddles that the Alphas must solve are very well done and I looked forward to solving them as well! Each riddle has children replace a letter from the beginning, middle or end of the word and encourages them to interact with the book in order to help the Alphas. This can be a hard task, but with fun riddles and encouragement, it is made a little easier. This last book in the series also combined the characters and some of the phonological devices from the past books such as rhyming and blending so children could practice those tasks as well.

This book was received for free in return for an honest review.