Lisel and Myrtle meet twice a month in Myrtle's large library room to read and discuss good books. It was Lisel who named their book club "The Mystery Kitty Book Club". This is why:
On one wall there is a large photograph depicting a now deceased kitty named Tallulah. Tallulah was once Myrtle's beloved cat. She loved to sleep in front of the library's fireplace, purring contentedly in the fire's warm glow.
Some mornings Myrtle would find the floor strewn with mystery books which Tallulah had pulled from the shelves using her teeth. These books tended to be from the same era or set in the same location thereby setting up a theme to read and compare nuances. Myrtle took to reading the books Tallulah chose and was struck by the cleverness of her cat's choices.
So Myrtle started a book club with Lisel so they could talk about the books Tallulah chose for them. Lisel agreed that Tallulah's book selections were quite entertaining. The Mystery Kitty Book Club enjoyed Tallulah's reading suggestions for many years.
Eventually Tallulah died and Myrtle, sad over the loss of her pet closed up the library, meeting Lisel at a local bookstore instead.
One Halloween night Myrtle heard several thuds in the closed-up library room and upon inspection found several new mysteries lying on the library floor, each with an added occult element in their stories. Myrtle felt it was proof that Tallulah's ghost still lingers in the library, choosing books for the club!
Now on Halloween night Myrtle and Lisel dress up in spooky finery and read books by the library fireplace to celebrate Tallulah's place in their hearts.