The Corner House Girls on a Houseboat / How they sailed away, what happened on the voyage, and what was discovered

A group of young friends form a civic improvement club and embark on a houseboat excursion that mixes social plans with unexpected danger. Their cruise reveals suspicious strangers, a theft, and a hidden stowaway, then escalates when someone goes overboard and a violent storm leaves the party drifting and stranded. While coping with survival challenges, the girls and their companions gather clues, follow rising suspicions, and pursue the truth through a series of investigations that alternate light domestic moments with tense adventure. Practical problem-solving, loyalty among friends, and steady teamwork lead to the discovery and capture that resolve the main mystery.