Dwarves and the Rat-kin : Extinguishing the candle
Rumours persist of rats the size of gnomes that walk on two legs (though I have yet to witness such a creature, personally).
Several entries in the Book of Grudges speak of protracted tunnel battles against these creatures, and of the poisoned claws they attack with.
It is yet unknown where they come from, but evidence shows they make their tunnels inside old abandonned mines, quarries and caves, where the dark, damp environment is best suited to grow their numbers.
It is 300 years ago that they emerged from the depths and now litter the underground of Azeroth.
Dwarves have reported sightings of the Rat-kin in Gol'Bolar Quarry and the Iron mines to the east, but they've been seen even in the distant lands of Stormwind, in the Elwyn forest.
Humans in those parts call them Kobolds.
Most infamous is the period after the First War, when the Black Plague swept Azeroth and the rat-kin emerged from their burrows to attack the dwarf lands en masse.
It would appear that the rat-kin have a labyrinthine tunnel network that spans the entier continent, intersecting all major cities and roads at several points.
What is apparent though is the growing canker of the dwarves towards this race of intelligent rat mutants.
Rat-kin were first discovered in Loch Modan, in the Silver Stream Mine.
On this day, miners of the Ironjaws clan, excavating a lucrative seam of silver break through into a vast warren of tunnels. Upon closer inspection, the tunnels are revealed to be of rat manufacture, crude and foul of stench as is the rat-kin’s mark.
Prospector Kazarak does report the tunnels are impossible to map and stretch for many miles. A war party of rat-kin broke through the tunnels and did slay Kragg Firehelm and sixteen miners of his clan.
Clan warriors are mustered but the rats flee into the warrens and pursuit is impossible. A grudge is hereby lodged against Kazarak Ironjaws, and the Ironjaws clan, for failing to shore up the breach discovered by them.
Fifty rattails each is demanded as recompense against the ratkin for the deaths of Kragg and his kin.