An important object has gone missing from the ship, and the Octonauts are determined to find the thief! Tension builds as more and more pieces of Octokit go missing, but still the crew can’t find the culprit. . . . Grosset & Dunlap creates high-quality books for young readers of any level. Focused on books for ages 0–12, Grosset offers a wide range of original fiction series, nonfiction titles, leveled readers, and licensed tie-ins to captivate every reader.