(Jeff Abbott is a regular contributor at The Pen Addict. You can find more from Jeff online at Draft Evolution and Twitter.)
I'm always on the hunt for exciting blue inks, and the most recent to come across my desk is Waterman's Mysterious Blue. I've had some trouble coming up with a description for the color of this ink, but I've settled on a rusty blue jeans color. It does have a bit of mystery to it, but that's bound to happen when using the same inks between different pens and papers. But, for being a dark blue ink, it's got some great character.
First off, the shade of this ink is much darker than I expected from looking at images online. It certainly photographs lighter than it appears on the paper. When writing, it shades beautifully and shows off navy, indigo, and green tones. It really is a beautiful color with loads of hidden characteristics. It's dark enough for office use, but has plenty of personality.
It's a well-lubricated ink that is very easy to clean. I haven't experienced any issues with it clogging, skipping, or failing to start immediately. It's a well-behaved ink, and acted exactly as I expected.