Gone Was Any Trace of You

Need to keep things like a secret? Well tortured poets, we have the perfect pen for you! Katie tested the Elemental Ink Pen by The Shop of Many Things. That’s right. You’ll have your own blank space, baby. And you’ll write your name. Take it away, Katie!


I am constantly searching for clever ways to develop clues for future Cotsen escape rooms. The Shop of Many Things Elemental Ink pens (a 3 pack is $20) definitely sounded like they would be perfect for a riddle mastermind.

According to the packaging, the elemental ink disappears when exposed to heat (104°F or 40°C) and reappears when cold (14°F or -10°C). I used my gas burner stove and a lighter as the heat source, and ice packs and my freezer for the cold. Other heat ideas include a light bulb, steam from boiling water, or an iron. Dry ice is recommended for cold. And if you are fortunate enough to have access to a laboratory with liquid nitrogen, that would be ideal!

Right out of the bag, all three pens didn’t work. I wasn’t sure if it was user error or lack of ink, but I was rightfully disappointed. It took a few minutes of scribbling lines and circles on a piece of scrap paper before the pens miraculously came back to writing life. Armed with a clever notepad (courtesy of Pop Cult Paper), I created a list of tasks:

The ink couldn’t take the heat over the stove burner and it disappeared immediately. In fact, the first time it happened, I gasped out loud. It was pure magic!


I also used a lighter both in front of and behind the paper with the same result. The lighter did leave burn marks on the back of the paper, so please be careful. We don’t want your paper to go down in flames!

It took longer for the ink to return in the cold. Simply placing the paper on an ice pack didn’t work. At all. I tried putting it between two ice packs. No go. The ink really wasn’t legible until I put the paper in the freezer where the air was cold and left it inside for around five minutes.

The Shop of Many Things claims the ink will disappear and reappear multiple times without fading, so I put that claim to the test. I went through the heat and cold process five times with the note on the left and just once with the paper on the right. Dear reader, you be the judge.

I also tested regular ink and the elemental ink to compare any differences. The elemental ink disappeared and reappeared, as expected. Absolutely nothing happened to the regular ink, also as expected.So you could write a message in regular and elemental ink, heat it up, and watch part of your message disappear! So go on, draw those hearts in the byline.

Overall, the Elemental Ink pens are a fun new addition to my escape room tool box. The ink instantly fading away using a heat source is highly entertaining, but I feel it is too arduous and takes too long for the ink to return in the cold. The bigger question is… will the Elemental Ink pens be used in an upcoming escape room? That hot topic inquiry stays cool with me.