house that also serves as a restaurant. The Krakatoa society follows a calendar with twenty-day months. On "A" Day of each month, everyone eats in Mr. and Mrs. A's American restaurant; on "B" Day, in Mr. and Mrs. B's British chop house; on "C" Day, in Mr. and Mrs. C's Chinese restaurant; on "D" Day, in Mr. and Mrs. D's Dutch restaurant, and so forth. Sherman's first friend on the island, Mr. F, runs a French restaurant containing a replica of the Hall of Mirrors. The houses are full of incredible items, such as Mr. M's Moroccan house, which has a living room with mobile furniture that operate like bumper cars. The children of the island invented their own form of amusement that combines elements from merry-go-rounds and balloon travel. When the volcano on Krakatoa erupts, the families and Sherman escape on a platform held aloft by twenty balloons. As the platform drifts westward around the world, the families parachute off to India and Belgium to start their new lives. Sherman remains on the platform and finally descends onto the waters of the Atlantic Ocean, where he is rescued. The professor concludes his speech by telling the audience he intends to build an improved balloon for a year of life in the air, financed by the diamond cufflinks he obtained in Krakatoa. Comparison to The Diamond as Big as the Ritz The story is preceded by a note from du Bois, informing that just before publication his publisher noted a "strong resemblance" between the book and The Diamond as Big as the Ritz, a novella written by F. Scott Fitzgerald in 1922. Du Bois acknowledges it is "not only quite similar in general plot, but was also altogether a collection of very similar ideas." He says it was the first time he had heard of Fitzgerald's story, and "the fact that F. Scott Fitzgerald and I apparently would spend our billion in like ways right down to being dumped from bed into a bathtub is, quite frankly, beyond my explanation." The two stories share the common concept of a giant diamond mine and the resulting need to protect the secret of its existence. However, they differ significantly in tone and plot details. Fitzgerald's story does not involve balloons, nor a Utopian society on Krakatoa, nor fantastic mechanical inventions like those described in du Bois's story. Fitzgerald's story also takes a