|Anna and Elsa from Disney Frozen explore a series of hidden hallways in the castle and uncover some spooky secrets in this Step 1 Step into Reading leveled reader with stickers! It's the perfect book for kids ages 4 to 6 for Halloween or anytime! Step 1 Readers feature big type and easy words. Rhymes and rhythmic text paired with picture clues help children decode the story. For children who know the alphabet and are eager to begin reading on their own.