Description In the Cot . Dad puts Bill to bed, but who visits Bill during the nap? Tim and Bill . Dad gives Jim and Bill a treasure map. What do they find? The phonemes /ll/ss/ 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.