Review on 💌 FLYOME Invisible Upgraded Message Goodies: Unleash Hidden Surprises! by Justin Ferguson

We made a quest for children in which they had to solve puzzles and find clues. Invisible ink sticks were such a hit. The only thing I didn't like was the cap that glows, doesn't end up fitting when you take it off to write. To make it easier for children to lose them. Which would render the pen unusable. I bought 3 sets for my grandson's birthday quest who had 12 children and then ordered another set before the party. Turns out my 3 adult kids thought they were so cool they wanted 1 pen too. lol find out!