action adventure animals beaches buildings children'sfiction etc fiction friendship general ghoststories goodandevil history horror horrorstories identity juvenilefiction monsters newyorktimesbestseller newyorktimesreviewed northcarolina nyt:childrens-middle-grade-hardcover=2016-07-31 nyt:combined-print-and-e-book-nonfiction=2017-10-15 sandcastles seamonsters shapeshifting structures supernatural vanderbiltfamily