The Wild Kratts roar in this Step into Reading story about lions The Wild Kratts have a rumble with the king of the jungle when they try to take care of three lion cubs on the African savannah. Will the brothers Creature Power be enough to keep the playful cubs out of trouble? Boys and girls 4 to 6 will love learning about lions in this Wild Kratts leveled reader featuring removable creature cards Step 2 readers use basic vocabulary and short sentences to tell simple stories for beginning readers who recognize familiar words and can sound out new words with help.