Kalseru. Rhaegal's ears twitched and he lazily lifted his head from where he had tucked his nose beneath his tail. He thought it a trick of the wind, perhaps a figment of his imagination called up from a dream as he dipped in and out of a sleepy haze. He rested in the snow next to his brothers, and it was the slightest movement in Viserion's form that kept Rhaegal from dismissing the notion as a fallacy. Golden eyes opened to gaze questioning into those of mismatched green, brown, and pink. So he had heard something as well? Shifting, he moved to rise and investigate just who was calling upon their sister. But Drogon was on his feet first, despite being roused last, his immense form pushing through the snow. The uncanny intuition between the brothers sent him in the right direction, the barest body language needed to signal him. Black ears folded back against his head as Rhaegal and Viserion followed in his wake, grateful for his willingness to break the trail.
The fact that a wolf had tried to steal her away from Spirane was perhaps what had put the brothers on edge in regards to their sister. Though they knew full well that Kalseru was capable of taking care of herself - she could dominate even Drogon if the situation called for it - they weren't about to leave her unprotected. And even though the call hadn't been all that easily distinguishable to Rhaegal in his sleepy stupor, he just had a feeling that something wasn't quite right. Of the three of them, he had always been closest to their sister. When they reached the ridge that overlooked the mountain pass below, Drogon paused, and his brothers moved alongside him, with Rhaegal in the middle - as had become customary.
Not far down the slope stood a wolf who very nearly rivaled Drogon in size - though perhaps more lean in weight than the behemoth of a wolf who stood to Rhaegal's left. This, of course, did not concern the three brothers as they stood shoulder to shoulder looking down at this foreign wolf. This wolf who clearly did not abide by the tenets of Moladion's packs - that one should call upon a pack from the borders of a realm that one did not belong to or have leave to enter. At this, Drogon's hackles bristled. But it was the words that he spoke next that brought Rhaegal's to a stiffness that had nothing to do with the wind that ruffled their fur. Kalseru, Erebos is here for you. His gaze was fixated up the slope, but away from the three brothers. Viserion's golden gaze was the only one that remained calm, feeling a strange trepidation about the situation. But before any of them could react, their sister replied.
Rhaegal's eyes snapped up to see Kalseru, paused some distance up the hill from him. If something went wrong, could he get to this stranger before he could get his paws on their sister? Drogon's head lowered as his lips began to peel back in a silent grimace, but Viserion interupted both of their defensive demeanors.
Bumping his shoulder against Rhaegal's the contact seemed to penetrate his worst-case-scenario assumptions, and with a roll of his shoulders he knocked against Drogon and the three set off not down but across the incline with the intention of intercepting this male who had come for - and found - Kalseru. Depending on her, and his, reactions, their path would lead them to a midway point on the slope between them.