As can happen with some dark moods, it's lessened with sleep. Mary is feeling... if not happy, if not cheerful... at least not actively misanthropic.

She helps by clearing the steps, as attacking the larger snow drifts with a shovel is just asking to get herself lost in the snow. And it's important that nobody slip when going in or out of the library.

"I am going to be so happy when Spring finally gets here..." she comments.