Legacy of the Dark Sage
When Kyran turned 18, his life turned upside down. The Royal Army raided his clan because his supposedly non-existent magic got exposed. On that fateful night, he was the only one who escaped. Up to the present, the status of his clan was unknown. A magic inheritance that became a curse, Kyran became a fugitive. Always on the run... living in fear when the Royal Army finally captures him. At least that's what most people thought... "I'll definitely save my family. And I will make all those who made my clan suffer pay tenfold. I'll make use of this magic they so feared, and show them what real terror is...." Disclaimer: The cover image isn't mine. I'll replace it when I finished mine.
Unexpected Turn
Kyran did not make a move when the three magical beasts started their attack because he already sensed the old man at the border. Given the situation, he did not think the old man would keep his hand while his people were slaughtered.
Showing up like that would end their facade, but that was the least of their worries at the current flow of things.
Besides, Kyran only suggested the old man leave the scene in the pretence of getting abducted because he wanted to give the Eidums time to breathe from the Nobles' harassment.
Whether the old man returned to the scene at a later date did not assure the Nobles would stop their harassment, especially after the news Dusk provided.