Talvi was aware of the fact that there were more siblings, her mother had mentioned their names once after they had been brought to Glaciem though she'd only really gotten the opportunity to spend time with Vereux and get to know him. The others it seemed were as removed from the family as her mother and other siblings. Unless of course she and Vereux were the absent ones, though it seemed unlikely given the fact that she hadn't seen them in meetings or lessons.
Despite her knowledge it would still come as a surprise to her when Athena would announce their relationship. She seemed rather happy for the revelation, all Talvi could do was hope that Athena wouldn't vanish on her and she'd have the chance to have more family around her. She smiled slightly in response, though the younger girl was by no means as exuberant as her older sister. "I guess so."
With the formalities and revelations out of the way, Athena would turn her attention once more to the tree and speak of climbing. The skill was certainly one that Talvi didn't exactly possess though it seemed that Athena may have been rather talented at it. "A little, I believe Etern wanted us to learn but I'm not too good." She would respond honestly. She wasn't sure she really wished to climb now, though for the opportunity to spend time with her newly discovered sister, she would likely give in and have a go.