Book Introduction The 100-Story House series: after Book 1 (Into the Sky) and Book 2 (Underground), here comes Book 3 — this time, into the Sea! A wonderfully imaginative number picture book with a fresh new twist. Come visit the strange and beautiful 100-Story Ocean House! As you explore ten floors at a time, each home to different sea creatures, you'll find you've learned to count from 1 to 100 without even realizing it! Who will Kongi meet, and what will Kongi see, in the 100-Story Ocean House? Get ready for an adventure with Kongi through this curious underwater home! Down, down, deeper down — as you descend the 100-Story Ocean House ten floors at a time (floor 10, floor 20, floor 30...), you'll encounter a different sea creature on each level: sea otters, dolphins, starfish, octopuses, seahorses, moray eels, jellyfish, crabs, anglerfish, and hermit crabs. Each animal's unique features are drawn in intricate, imaginative detail, so children can learn about ocean life simply by studying the pictures. Like a hidden-picture puzzle, there's always something new to discover on every page, making this beloved 100-Story House series endlessly enjoyable to read again and again. Beyond sparking children's imaginations, the books offer a natural learning boost, helping kids easily pick up counting from 1 to 100 just by reading and looking at the pictures. The author's clever idea of having readers turn the pages downward as they read lets little ones fully experience the sensation of descending deeper and deeper into the ocean depths — a truly refreshing touch.