Noodler’s Heart of Darkness is one of those inks that almost everyone recommends. Heart of Darkness (or HoD) is praised for is deep, dark colour and bulletproof qualities. I have wanted to try this one for a while but couldn’t justify buying a second bottle of black ink, luckily a fellow fountain pen addict gave me a lovely sample at our monthly meetup. The ink performs very well, flows well, lays a nice line and dries in a very reasonable amount of time. Due to it’s dark colour there is some show through but I was VERY impressed by how little bleed there was. The only time this ink feathered was on moleskine paper. HoD did smear a bit when wet on Rhodia paper but on printer paper it held up perfectly under running water. This is an excellent ink that I will not hesitate to purchase after this sample runs out.