The Slytherin House pen included is filled with invisible ink, which can only be seen under the glowing wand’s UV light Includes - Full colour brand gift box packaging with embossed foil accents, leather effect notebook with blank (non-lined) pages, invisible ink Slytherin House pen, and wand UV light with hole to attach to key rings or key fobs (keyring or key fob not included) Tom Riddle used his diary notebook to invisibly store all of his secrets and memories. Now you can do the same! Leather effect look and brass toned metal corners Also works with Muggles and No-Maj pens and pencils