A sourcebook for Warhammer Fantasy Roleplay (3rd edition).
Originally released by Fantasy Flight Games in 2011.
By Various Writers.
Edited by Dylan Owen and Benjamin Sperdutto.
Page 30 : Order of the Fiery Heart Chapter : In the 3rd paragraph Karaghul is mentioned as an magical artifact of their order. Certain members of the order reported visions of Sigmar telling them to retrieve it from beneath the ruined Dwarf Hold Karak Eight Peaks. Many members have gone over the years to retrieve it but none has returned. This is a mention of Felix’s sword and also (of course) of the novella The Dark Beneath The World.
Notes :
Cover is NOT Gotrek & Felix so the artist is not mentioned.
The duo is not mentioned in the back cover.
There is also another Omens Of War box from Fantasy Flight Games but it is Chaos related (particularly Khorne).
Gotrek & Felix are not mentioned, nor Karaghul or the Order of the Fiery Heart.