In this diary, your secrets will be well kept!
Thanks to the invisible ink pen write your secret messages and confidences, let it dry and use the lamp to reveal the text.
And don’t forget to close your diary with the magic formula: mischief accomplished!
Write, let dry and use the lamp to reveal the text.
Invisible ink pen
Book dimensions: 21 x 15.5 x 3 cm.
Licensed Product Harry Potter