The sensational bestselling '100-Story House' series is back with its sixth installment! This time, the setting is a swamp! The '100-Story House' series, known for its wonderfully imaginative take on counting picture books, returns with a whole new adventure. This time, journey deeper and deeper down into 'The Swamp: A 100-Story House.' As our hero Chaengi descends through the swamp's 100 stories, ten floors at a time, who will he meet along the way? Will Chaengi really find powerful beings strong enough to push away the giant full-moon boulder once he reaches floor 100? Will all the creatures of the swamp be safe? Come along with Chaengi on a strange and beautiful adventure through the 100-Story House deep in the swamp! Ready, set, go! Atop a mountain sat a large, round boulder shaped like a full moon. Not far from the mountain was a small swamp, home to many growing tadpoles. Among them was one tadpole, bigger than the rest, named Chaengi. Kind and brave, Chaengi was loved by everyone. But Chaengi had one worry—unlike the other tadpoles, he hadn't grown any arms or legs. One day, as strong winds blew, the enormous full-moon boulder came tumbling down the mountain with a tremendous crash, landing right in the swamp. Caught in the swamp, the boulder slowly began sinking deeper and deeper. Chaengi swam downward, searching for someone who could help. In front of Chaengi was a strange house where crayfish lived. "The full-moon boulder is sinking deeper into the swamp. Please help us!" "I'm sorry, but we can't help. Try going further down." Past the crayfish's house was another home, where carp lived. "This house has different creatures living on every ten floors. I've heard that on the very bottom floor, floor 100, lives someone incredibly strong. Go ask for help there." Who lives on floor 100? Are there really powerful beings strong enough to push away the full-moon boulder? What will happen to all the creatures in the swamp? Will everyone be safe?