Frozen Electronic Secret Diary - Disney - IMC Toys. Hide all your secrets in this incredible electronic secret diary with the exclusive Frozen design. Only you will be able to open it and read your messages thanks to the electronic key fob you can use as a control to open your diary and read your secret messages with the help of the ultra-violet light. if anybody tries to open your diary when you are not there, an alarm will go off. Contains diary and pen with invisble ink. Style and Colour May Vary. Ages 3+