First Edition stated. "Setting a murder on board the transatlantic liner, Latakia, two days at sea, facilitates a good deal more tension in this mystery than if it had been set on land. The culprit's presence is acutely felt, the characters are captive and forced to mingle, suspensions run rampant. Meanwhile amateur sleuth, Walter Ghost, awaits the delivery of cablegrams and contemplates some obscure (to the reader) clues to the crime." Near Fine but for mild stain at two internal pages (from something having been left there long ago) in Very Good dustjacket, shallow chips at top spine end and flap corners, nicks and wear at front flap edge.