Merlin gently took the book from Luna's hand and set it back on the shelf in a gap near her head. "Well, my fine little librarian," he said, leaning over her against the bookcase, "while you've been off dancing with witches, maybe you've learned a couple of new, highly satanic tricks?" He trailed a finger down her chest to her cleavage in that tight little dress, and stroked the curve of her decolletage with the back of his finger. "Devilish tricks are my favourite."