Lorcan wasn't thinking. Despite a few valiant attempts, he really hadn't been thinking since he opened the pantry door and confronted a bitter magicless version of himself. Even since that moment of surprise and shock, he'd just been reacting to what was thrown at him and trying to find the best route through a maze of problems, one problem at a time.
Right now, he was reacting to a strong but irrational desire to get back somewhere safe before something else happened. The boggart might be gone, but he wasn't sure he quite trusted Min in this state. And then there was the pressing need to do something about Corrie's hand -- he knew it was full of splinters, and covering it to staunch the flow of blood a little wasn't really any kind of solution at all. And she seemed weak and in pain...he still thought Corrie was going to need a healer. The sooner the better.
So when Corrie realized about her wand, he tightened his grip around her and tried to turn her toward the door -- the gesture was half comforting hug, half guidance away from the scene. "It'll be okay," he said soothingly. "It's only a tool. You can get another one, and you'll hardly know the difference." He tried to guide her away.