Fish Ink
Fish Ink is a quest for level 10-45. It is step 3 of 42 in the Legion Inscription storyline. The quest's turn-in marker is in Dalaran at 41.1, 36.8. It rewards 6,150 experience and money.
Description
You know, herbs aren't the only ways to obtain ink. Other materials can be inkified.
Slightly related! I've been tinkering with the idea of creating my own type of Darkmoon card. Surely if those troggish carnival people can do it, then so can I.
To do so, we'll need some special reagents. Go down to Azsuna and collect some oils for me, then mill them into a suitable ink.

