A Step 2 Step into Reading leveled reader featuring Anna and Elsa from Disney's Frozen ! Anna and Elsa from Disney's Frozen sail off on a new adventure, but will Elsa use her powers in the world beyond Arendelle? Children ages 4 to 6 will love this Step 2 Step into Reading book about exploring and making new friends. Step 2 readers use basic vocabulary and short sentences to tell simple stories. This book is for children who recognize familiar words and can sound out new words with help.