If @Morganna had been able to get away with such a feat then, surely, Sköll should have been able to also. Having escaped his siblings' companionship, a skill he had recently procured and mastered to an art, the young prince stealthily continued his task of looking for the weird flash of white he thought he had spotted in the grass not far from the den. The large black ears atop his head rotated this way and that, his now silver-tinted eyes scouring plant and dirt alike while his nose noisily sniffed at the ground. Three things were for sure: this thing was small, it smelled weeeeeeeirdddd, and the boy definitely wanted to catch it so that he could show it off in front of Morganna and Asriel's faces.
It had taken some time but Sköll soon realized where this small thing was taking him - over the invisible lines that divided his mother's territory. A furtive glance over each of his shoulders convinced him it was perfectly fine to continue his tracking mission. He lowered himself into the grass, watching and waiting before he saw it. A stark white field mouse just small enough to fit between his paws, but... the thing was... he had never even seen a mouse before, let alone knew what it was called.
As the boy scampered forward, he opened his jowls while the albino rodent panicked and tried to find a suitable hiding place in a nearby willow tree. It darted underneath the sheer, green curtain-like branches and Sköll dove in after it, his teeth clicking as he bumped his nose into one of the gnarled roots. All sorts of growls and whimpers emitted from him as he managed to corner the creature inside a shallow knot hole. Determination had his paws scratching at the tree bark; one swipe, two swipes, and the red-eyed mouse came flying from the willow's side. Had nature been kinder, Sköll's new plaything would have been born with a more typical pelt pattern, but as it was, it fell to the ground and the focused cub skipped forward to pin its tail beneath a fore paw. @Elettra had often told him to not play with his food, but the boy had yet to realize his prey was a toy and a snack all in one.
The poor thing was picked up and tossed in the air. When it tried to scurry away again, the princeling successfully captured it again and tossed it into the air once more, just to see it flail its small arms and whip its tail about in a circular fashion. The albino mouse made toy, although disoriented, attempted again to make a run for it; its durable skeleton thoroughly surviving the cub's game of airborne antics. As it headed back towards the territory markers Sköll had surpassed, the boy followed, making a very long leap that landed him right on top of his target.