He did not get a very good look on the way down, but...
This place reminds him of tales of Oldhome. The land torn asunder in hunger, metal and stone creeping across the artificial landscape. And those are definitely Tailless; Or something like them. Do they plague more places than just the old home? He never saw Oldhome, and all he has to know them by are the stories and impressions of Darktooth, his father, who fled their steady encroachment, choosing flight over war or surrender.
...Disquieting. But the Seeker built the bridge of light, and these people did not. If he is slain, his vessel will ruin itself, and the secret will be lost. If he flees, they cannot follow.
Fear and ambition and discovery...
He sings, a crooning song somewhere between a chorus of birds and a roaring lion and a church-organ, a song to sort out his feelings and express curiosity, wariness, excitement, and déjà vu. A little bit of these emotions might carry through the Onesong that connects all minds, all the way to those who hear it, but then again, perhaps not. It's more an expression of emotion than an attempt at an announcement.