I just found this compilation on amazon it contains the first two Blandings castle novels as well as the first three short stories, so if you like the novelette about Blandings in the book you ordered you may like this
http://www.amazon.com/gp/product/0140059032?ie=UTF8&tag=httpwwwgoodco-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0140059032&SubscriptionId=1MGPYB6YW3HWK55XCGG2


PS it contains summer lightning one of my favorites