A little secret notebook and invisible-ink pen for you to write and draw all your secrets in! Just pass the UV light over it to reveal all your secrets! This notebook contains 88 lined and illustrated pages. It comes with a heart-shaped lock and 2 keys to keep all your stories safe from prying eyes. Lovely Paper by Djeco: a refined, delicate and beautifully illustrated stationery collection to brighten up the daily life of young and old.\nPlease note, this product contains button batteries (within the pen that are unremovable and can not be replaced). Button batteries are unsafe if swallowed. \nSuitable for ages: 8+ years