Killian stuffs the letter back in the envelope and nods, following Thorir wherever he ends up leading him. He hadn't expected this when he recognized the name on his mom's stuff. The most he anticipated was Thorir saying he might be a relative. Not that the guy his mom wrote all those letters to was his brother.

"I am so sorry about this." He doesn't know why he's apologizing, just that he feels like he should.