Murder at the Polo Club

Cleo is off to the very important polo game, her cousin Flossy wants to be seen. They arrive in time to stumble over a dead body.

These books are starting to feel a little stale as the back story isn't really moving and no change in the characters. Where are they going with the aunts addiction problem? Nowhere but we mention it every book multiple times. Maybe next book will be “a new chapter”?