40 THE CAT AND THE KNOCKER. The next day the same thing happened, but it occurred several times before any one suspected that Deb could possibly have lifted the knocker. At length Mary told her mistress what she thought, and one of the family hid in the shrubbery to watch Deb’s doings. Deb was allowed to run out into the garden, and the door was closed. After a time the-clever creature was seen to climb up on the window-sill, and then to rear herself on her hind-feet, in a sloping position at the full stretch of her body, when, steadying herself with one