18 Books Every Mom Needs in Her Beach Bag This Summer

Every parent's worst nightmare comes to life as two couples take their four kids — ages 6 to 11 — on a cruise, then lose them when they go ashore for an adventure in Central America. Told from both the parents' and children's perspectives, Do Not Become Alarmed ($27) is one of the most buzzed-about books of the Summer for good reason, highlighting how our power as parents has its limits.