As may be imagined from the title, Mr. Fenton Ash's book does not lack for marvelous adventure. The story opens in the Southern Seas with the fall of what is at first taken for an immense meteorite, but really is a Martian airship. /low the two heroes, in company with a few other denizens of this earth, are invited to return to Mars, and what they do and see there, make a tale well worth reading.