Mrs. Cooper was going to Avery's room to get Elliot's suitcase to hand over to Mrs. Scarlet.

She figured that Avery would not want to see Elliot's things. Instead of throwing it out, it would be better to let Mrs. Scarlet take them with her.

Mrs. Cooper knocked on the door, then walked into the room.

"I already gave Master Elliot my resignation, Avery." She sat by the bed, saw that Avery's eyes were open, then continued, "I'm here to take his suitcase for Mrs. Scarlet to bring back with her."