Lee Publications are You Smarter Than A 5th Grader?, Invisible Ink Quiz Book

Arrived quickly. Happy 12 year old!

Kids enjoy the book - the facts presented in the book are accurate and is a great way to learn

As other reviewers have noted, some of the answers smear.

Order shipped on time.Great Trivia questions. I found some of them very challenging.Invisible Ink Pen is a little light on the page. But it still works.

I have tried several pages of the book. The pen does not always reveal the answers. It just seems to leave a pale yellow color and an unreadable blur. I definitely would not recommend this to anyone.

There was only one pen and the pen did not work well. After using the pen, the answers were not easily visible.