Speak with Chieftain Swiftspear in Frostfloe Deep, then return to Xarantaur at Camp Tunka'lo.
1x Ask Chieftain Swiftspear about his memories
When the bronze dragonflight gifted me with immorality and set me on the path of the witness, Nozdormu entrusted me with the Lorehammer.
The hammer's reaction to your findings means that time has gone awry here and it is our duty to restore the true timeline.
We must find it. To the northwest is Frostfloe Deep, ancient burial cave of the warriors of Tunka'lo. Seek out the spirit of Chieftain Swiftspear, Stormhoof's brother. Ask him what he remembers of his brother's battle against the North Wind.