[X] Dwarf
I care little for gender, but it is very likely that the unknown bonus will be something related to either Titans or Old Gods, the two forces I think are most likely to be involved in whatever is going on. So, I want to know more about that.
Also, I've spotted a few incorrect things being said, and as a Warcraft Lore Freak (yes, the capital letters are mandatory), I have no choice but to clarify.
Someone said that Dwarves were created by Old Gods, and someone by Titans. In a fashion, both are right. Before the Titans left, they created various races. One of these races was the Earthen, a race that mostly resemble Dwarves, merely with bodies made of stone or another mineral. Sometime after the Titans left, (some?) of the remaining Old Gods created something called the Curse of Flesh
O Lady Deathwhisper was right!), which hit many of the races left behind by the Titans, resulting in various new races, like the Dwarves.
Actually, Gnomes and Humans are products of the Curse of Flesh as well, but for whatever reason, they don't seem to share the affinity that Dwarves have with Titans and the artifacts they left behind. Also, not all Earthen were transformed by this curse. Several live in Uldaman, which is a site once used by the Titans for whatever means.
In addition to this, I also have a question. How does the Wildhammers feel about Ironforge Dwarves in this quest? In canon, they seemed to be on at least somewhat good terms, and they have fought at least three wars on the same side by now, so relations between Ironforge Dwarves and Wildhammer Dwarves should be friendly.