Peaceable Kingdom Top Secret Diary with Invisible Ink Pen

Name: Peaceable Kingdom Top Secret Diary with Invisible Ink Pen
Brand: Peaceable Kingdom
SKU: B077R45B3B
Price: 14.99 USD
Availability: InStock
Rating: 4.3 (571 reviews)

4.3571 ratings

Invisible ink pen
Ages 6+
Peaceable Kingdom

$14.99

Price checked 2026-10-06. The partner store sets the final price and it can change.

The Top Secret Diary plays up the spy angle with cover words like confidential and classified. A lock, key and invisible ink pen give young agents the gear to match.

Cover labeled confidential, top secret and classified
Includes an invisible ink pen for hidden messages
Secret message light helps reveal what the pen wrote
Lock and key keep the pages private
Measures 5.5 inches wide by 6.25 inches high

How it plays at home

This one is for the child who wants to play detective as much as write. Jot a note with the invisible pen, shine the light on it and the message appears, which makes it fun to swap clues with a friend.

Tip: write the real secrets with the regular pen and save the invisible ink for games.