Book #44 was Cards on the Table by Agatha Christie. The back of the book reads:

An enjoyable evening of bridge turns into a murder investigation when the host is found dead. Can the four invited sleuths find out which of the other four guests is the killer?

I thought I had this figured out early, but I was wrong! I listened to this (a “radio play” version, really), and I find the BBC productions of Christie’s books to be quite charming. If you need something to pass a couple of hours, I recommend them. This is the first Poirot I’ve listened to, and I think I prefer Miss Marple — Poirot’s accent takes some getting used to.

Page count: 336 | Approximate word count: 55,101