Robertson is best known for his short novel Futility, or the Wreck of the Titan, first published in 1898. This story features an enormous British Passenger liner called the SS Titan, which, deemed to be unsinkable, carries an insufficient number of lifeboats. On a voyage in the month of April, the Titan hits an iceberg and sinks in the North Atlantic, resulting in the loss of almost everyone on board. There are many remarkable similarities to the real-life disaster of the RMS Titanic. The book was published 14 years before the actual Titanic, carrying an insufficient number of lifeboats, hit an iceberg on the night of April 14, 1912 and sank in the North Atlantic, killing most of the people on board. The similarities between the two has lent credibility to conspiracy theories regarding the Titanic.