First published in 1929, now public domain in the US and Canada, "One By One They Disappeared" by Moray Dalton is a fast-pace whodunnit murder mystery spiced with a little bit of romance. Elbert J. Pakenham of New York City is among just nine survivors of the sinking of the Coptic. The benevolent Mr. Pakenham has made his fellow survivors joint beneficiaries in his will, his nephew having recently passed away. But it seems that someone is unwilling to share the fortune, as the heirs start to die under mysterious circumstances.