"High Kahl's Oath" SPOILER - a neat little reference I found.

NOTE: I'M ONLY HALFWAY THROUGH THE BOOK SO I'M NOT GONNA CHECK COMMENTS HERE UNTIL I'M FINISHED WITH IT.
So, I don't know how many people immediately recognized this, but for those of you that didn't:

Here are some of the lyrics to the song Call of the Hearth in the book:

"Come the time and come the need
Come the peril and the darkness
We have come to hearken
Our Hearthland's call

From the four far corners of the void

Hearthland, Hearthland!
Together standing strong
One Kin as One Kin
We'll hearken the Hearth's call"

And HERE are some of the lyrics to the song Ireland's Call by Celtic Thunder:

"Come the day and come the hour
Some will live in song and story
We were born to follow
Our guiding star

And to meet our destiny with glory

Ireland, Ireland,
Together, standing tall
Shoulder to shoulder
We'll answer Ireland's call!"

So if you want to know how the song is actually sung, since it's not the *most* intuitive pattern, you can google Ireland's Call by Celtic Thunder to see how the melody goes.