Reddit reviews Noodler’s Bulletproof Blue Ghost Invisible Fountain Pen Ink

Not really

The main item would be the ink, so here's the info on that:

Name: "Noodler’s Bulletproof Blue Ghost Invisible Fountain Pen Ink"

$14 for 3oz

Source Video:
https://www.youtube.com/watch?v=RxcK-V-tf8E

Product Links:
>(these are taken from the description of the video and are affiliate links, so will help out the video creator)

Invisible Ink: http://amzn.to/2n1pHRg
Black Light: http://amzn.to/2newY0J

You would of course need a black light for this to glow, and turning it off will not show the ink at all.

The glass dip pens he linked to are sold out, so I found similar ones here that range from $20 to $90:

http://www.thewritingpenstore.com/c-126-glass-dip-pens.aspx

NOTE: I just realized this ink is not recommended for fountain pens, but is good for dip pens or brush pens.
https://www.jetpens.com/Noodler-s-Ink-Opaque-White-Ink-1-oz-Bottle-White-Peacock-1-Free-Pen/pd/4736

I did find this https://www.gouletpens.com/products/de-atramentis-document-white-35ml-bottled-ink

You can also get transparent ink that lights up under a black light.

https://www.amazon.com/Noodlers-Bulletproof-Ghost-Invisible-Fountain/dp/B000WJ1MJC

I just posted this in a vaguely similar thread. It's less about the details of your adventure and more about the delivery:

Create ambiance:

• /u/UwasaWaya talked about candlelight, but don't neglect the other senses. Pick some creepy background sounds. It doesn't need to be music necessarily - check out Tabletop Audio for some awesome ambient sound. Click the "Horror" tab right under the masthead, but also consider browsing other categories. Note: some tracks also include subtle music, and that is specified when you pick your tracks.
  
  
• Use perception to certain types of interaction, and bounce one player's honest reaction off others. Sometimes I'll have one player (who passes a perception check better than others) wear headphones while I play audio of something they hear. It's honest enough to be "legit", but they still don't usually know what it is because I haven't yet told them. So they hear something horrifying (one example is insect noises mixed with ripping flesh), and all of the other players see their face go from confusion to disgust to worry. It works wonders to create an environment in which everyone is uneasy.
  
  Consider presentation and "the reveal"
  
  
• Remember that the scariest things are the ones we don't fully understand. Consider the writings of H.P. Lovecraft (author of The Call of Cthulhu, etc.): He often described his horrors as, well, something that couldn't be described. Things man was not meant to know or cannot comprehend. Many of the terrible scenes, ancient horrors, or despicable acts happened "just off camera", so to speak. He'd describe the terror and mad ravings of those who witness the horrors, but often avoided describing the horrors themselves directly except through their eyes, after the fact. Thus, players are hearing someone's second-hand description that is distracted by that person's emotions, which lends an air of mystery, like the players know it's bad but can't quite get the complete picture of just how bad it is, leaving it up to their respective imaginations.
  
  
• Instead of describing a horrific scene in detail, consider describing a scene in which something horrible clearly happened, but exactly how horrible and the extent of the horror is unclear. Which is more horrifying? A flayed, dead body lying on the floor, with all the details visible? Or a pool of blood, scratch marks on the floor from their broken, bleeding fingernails as they tried and failed to escape, signs of an attack by something with claws and extremely sharp teeth, and long streaks leading from the blood that terminate at a severed hand, a few fingers left on it, that is attached to bones stuck under a locked door? And what if the hand vibrates slightly as if being gnawed on by something unseen that disappears moments before the door is kicked in? Something horrifying is there, right around they veritable corner, but they just missed it! What if they have their backs turned at the wrong time, and get singled out while the others are examining something else? Will they even know what happens to them entirely as their own flesh is gnawed off by this elusive, yet clearly dangerous creature?
  
  Think of "gimmicks" to add realism and creepiness:
  
  
• Make "real" clues that you can hand out at the table. Don't just describe them; give your players something tangible that they can touch, hold, and examine. Some examples are below.
  
  
• What time period is your setting? If modern-ish, type up some fake newspaper stories and print them on newsprint. Rub it with dirt and stain it with coffee for an authentic feel. If older, grab some parchment at a local art/craft store, a cheap calligraphy pen, and write on it. Tear the edges, then burn them with a lighter or matches. Voila! Instant treasure map/ancient text/scrawlings of a madman.
  
• Consider purchasing some sealing wax and a seal (relatively cheap online or at chain art supply stores) and sealing envelopes, rolled parchment, etc. Adds a nice touch, yet is very easy (and relatively cheap) to do. Add a folded, tied, or wrapped ribbon under the seal for added flair, if you're looking for that sort of thing. However, that's more "fancy" and less mysterious, depending of course on where the letter comes from.
  
• Order some glow in the dark paint or ink to create secret messages or clues on the other materials you hand out, for a later reveal. I'd recommend Noodler's Blue Ghost. Note that it's a fountain pen ink, so you'll need a fountain or calligraphy pen to use it. One way to create these clues is to paint/write a complete message on one of your other clues/artifacts, but another is to create a partial message in a visible ink and finish it off using glow in the dark ink, so that it's only readable when they view it under "moonlight" or whatever. Note: these images aren't mine; they're just where I got the idea.
  
  
• Fake blood can be scary on your "clues" if used correctly. Don't just use "blood" for the sake of blood. Have a reason it's there. Maybe someone died while handing it over, so there are drops of blood that fell from an open wound. Perhaps they were injured while writing it, which led to smudges. Apply blood as it would have actually rubbed/smudged/whatever, rather than just pouring it on. I recommend Diamine Oxblood. It's available on Amazon, but it's much cheaper from Goulet Pens (which is where I linked), and you can get the Noodler's Blue Ghost there as well as many fountain pen options. They also offer many different styles of ink (cartridge, dip, sample sizes to try things out, etc.), and it's a great company. They include a lollypop with every order, and they're packaged with ridiculous care. Note that you will likely get ink on your hands, and having Oxblood (just ink that's named Oxblood; not real ox blood) on your hands will sometimes get you odd looks.
  
  
• Imagine whether or not any special effects are possible. Can you cause something light and "tickly" to fall on your players as they're passing through cobwebs, or right as you're describing strange noises? Can you cause noises to occur somewhere nearby, such as through your TV or stereo via bluetooth or similar control? (Without being revealed on a screen visible to your players?) Consider recruiting a friend to come by your house/gaming location at a specific time, pound on the wall when you text him, and disappear before anyone can see him. Or maybe he smacks something that looks dead or evil against a nearby window. Perhaps he screams down the hall where he's been hiding at an opportune time. Basically, think about how you might make a customized "haunted house" during halloween and think about how you can apply it to your scenario.
  
  A warning about gimmicks: the more gimmicky they are, the greater the chance that they'll become campy or funny. But if you pull them off well, they'll make for an excellent experience. :-)
  
  Good luck!