Space time itself muddled and skewed as light coiled and bent and unfamiliar stars and shapes replaced their native counterparts, intertwined with a dark purple cloud. It painted a rippling hexagon onto the perceptual night's sky of deep space. The purple mathematically perfect shape flickered to a blinding white as a smooth organic form slipped from it's lips out into local space, red and white gasses ebbing across its surface like smoke to disperse into the void.
The dim red shell of a form was smooth and rounded with veins marked beneath it's armored transparent skin. The craft of unknown origin harbored limb-like protrusions which gracefully extended out from points across its body. They behaved like limbs as the object turned about, narrowly missing the Yggdrasill. It's propulsion system sent an echo of its sheer efficiency and shook the Yggdrasill's hull and contents as it glided past on a stream of distorted space and light which it's limbs shone in a cuttle-fish like pulse.
Aboard the Yggdrasill, comms screamed a loud ear-splitting noise through the pass like a razor-blade lost in a turbine. As the proximity grew and the two ships parted, the volume fell and the pitch dropped several octaves in a smooth sound like a voice. The comms growled in a low voice through sharp flickers and purrs of notes. The sound was distinctly like a finger pressed against a fan, growling through sharp flickers, a ribbed organic racket.
The hexagon shifted up into an octagon and briefly a circle before it cracked like glass and shriveled, imploding upon itself with a white twinkling shockwave into space that send another shake through the Yggdrasill.
Although its form shook and shivered as if it were a kludge of the dimensions themselves, the second occupant had arrived and it eagerly chased the first craft, now dubbed UNKNOWN ORIGIN in bold yellow letters which flickered off once every second, an arrow marking out the alien craft as it maneuvered with immense (if not staggering) ease in relative to the Yggdrasill, tracking it as it seemingly opened fire on the void on an area that was little more than a red dot that flickered quickly to form an optic cloud as it was registered by the Subspace Mass sensors.
The second visitor could not be clearly located by the Yggdrasill, jumping around a 3km blur on sensors.