Top Secret: The Ultimate Invisible Ink Activity Book (Klutz Activity Book)


Price: $5.88
(as of Mar 15, 2026 17:32:50 UTC – Details)


An activity book to beat the boredom blues, packaged with a UV invisible ink pen with built-in revealer light! Battling the I-Have-Nothing-To-Do Blues? Never fear, this book is here!The Klutz Book of Invisible Boredom Busters is jam-packed with hidden messages, secret codes, games, jokes, and more activities to help bust even the most unbeatable boredom. You’ll see both visible (and invisible) activities, fabulous facts, and mysterious messages throughout the 64 full-color pages and uncover invisible ink printed notes and images on every page.Included is one UV pen to write and reveal hidden messages in the book or on your own!

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Customer Reviews

4.7 out of 5 stars 821

4.8 out of 5 stars 66

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4.7 out of 5 stars 55

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4.5 out of 5 stars 26

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Publisher ‏ : ‎ Klutz
Publication date ‏ : ‎ June 1, 2021
Language ‏ : ‎ English
Print length ‏ : ‎ 60 pages
ISBN-10 ‏ : ‎ 133874528X
ISBN-13 ‏ : ‎ 978-1338745283
Item Weight ‏ : ‎ 2.31 pounds
Reading age ‏ : ‎ 6 – 9 years, from customers
Dimensions ‏ : ‎ 7 x 0.9 x 9 inches
Grade level ‏ : ‎ 1 – 3
Best Sellers Rank: #2,000 in Books (See Top 100 in Books) #51 in Children’s Game Books (Books) #133 in Children’s Activity Books (Books)
Customer Reviews: 4.7 4.7 out of 5 stars (478) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

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