Revel in the charm of Hogwarts(TM) with this deluxe lock and key diary that comes with a companion invisible ink pen, 192 ruled pages, and a lock with two keys to guard your enchanted thoughts and spells. Celebrate the enchantment of the Harry Potter(TM) films with this lock and key diary that features a classic gold Hogwarts(TM) crest on the cover, 192 ruled pages, an invisible ink pen to conceal your secret messages and spells, and a lock with two keys to keep your thoughts secure from witches, wizards, and Muggles(TM). INVISIBLE INK: Write your secrets down with the included invisible ink ballpoint pen and use its magic light to reveal your hidden messages throughout the pages of the diary. 192 RULED PAGES: With 192 pages of wide-ruled paper within this diary, you'll have plenty of room to jot down all your magical discoveries and ideas. UNDER LOCK & KEY: Keep your thoughts and secrets protected with this lockable diary and two companion keys, in case you lose one. CONVENIENT SIZE: This 5.25 x 6.625-inch journal is a compact size for travel and fits easily in a bag or backpack to take with you on your next spellbinding adventure. ADD TO YOUR COLLECTION: Add more fun Harry Potter(TM)-themed lock and key diaries from Insight Editions to your collection with Harry Potter: Hedwig Squishy Lock & Key Diary, Harry Potter: Wands at the Ready Lock & Key Diary, Harry Potter: Marauder's Map Lock & Key Diary, and more!