The Missing Sapphire of Zangrabar

When Patricia Fisher boards the world's finest cruise for a three-month tour of the world, she expected a great many things ... ... finding herself embroiled in a priceless jewel theft wasn't one of them. Less than twenty-four hours after setting sail, she's accused of murder and confined to her cabin. Thankfully, she is staying in the royal suite and that means she has a butler to help her. When he recruits his gym instructor BFF, Barbie, the trio turn detective to find the real killer. But someone on board doesn't want them to succeed and when the next body is found in her kitchen, the team realise it's more than just her freedom at stake. They'd better solve this fast or all three of them might be next.