Description Ben.s Bag . Something smells bad in the bag, but what is it? Ben will need to sniff the things inside to find out! Hal Is Big . Hal is big, Biff is small, and Ran can can-can. Find out what else the circus performers can do! The phonemes /b/ff/ are featured in this title. Level 2 - Red books introduce simple letter-sound combinations. As each set of letters is introduced, children are encouraged to use their new knowledge to sound out and blend words. For example, they will learn to blend the sounds s-a-t to make the word sat.