emily_calkins shared a tip "When their employer sends a group of four 60-year old lady assassins on a retirement cruise, it soothes the string of being forced out - until they realize someone is trying to kill them. They have to go off-grid and rely only on each other for survival. Funny, action-packed, with lots of fun spycraft details, glamorous globe trotting, and some genuinely tense moments. I really enjoyed this!"