Sizhui's appearance causes a relieved look to immediately fall over Wen Ning's face. Considering the possibility of sentience with these household items means he's just about as at ease with them as he would be any other unknown individuals that were suddenly in his personal space. Which is to say not at all.

He holds the book tightly to his chest with both arms, following after the boy. Would they be chased? Fighting floating dust rags isn't how he'd imagined himself spending his afternoon. Was wanting to read a book about dinosaurs such a crime? He's allowed to borrow this. It doesn't have to go back on the shelf just yet. Perhaps there had been some confusion in their activation spell and Wen Ning hadn't registered as living. That wouldn't surprise him, honestly.

"Are they... all over the train?"