It's Thursday.

Laura pattered beside him to the other window. He leaned his gun against that wall and lifted her up again. There, sure enough, was the other half of the circle of wolves. All their eyes glittered green in the shadow of the house. Laura could hear their breathing. When they saw Pa and Laura looking out, the middle of the circle moved back a little way. Pet and Patty were squealing and running inside the barn. Their hoofs pounded the ground and the crashed against the wall. After a moment Pa went back to the other window, and Laura went, too. They were just in time to see the big wolf lift his nose till it pointed straight at the sky. His mouth opened, and the long howl rose toward the moon. They all around the house the circle of wolves pointed their noses toward the sky and answered him. Their howls shuddered through the house and filled the moonlight and quavered away across the vast silence of the prairie. Pa asked Laura, little half-pint, to go back to bed and go to sleep, and Jack and him would take care of them all. So Laura went back to bed. But for a long time she did not sleep. She lay and listened to the breathing of the wolves on the other side of the log wall. She heard the scratch of their claws on the ground, and the snuffling of a nose at the crack. She heard the big gray leader howl again, and all the others answering him. But Pa was walking quietly from one window hole to the other, and Jack did not stop pacing up and down before the quilt that hung in the doorway. The wolves might howl, but they could not get in while Pa and Jack were there. So at last Laura fell asleep.