This creature was made by Aurora, one of the Children of Veteris. As a youngling, each Child of Veteris is encouraged to create a companion or guardian. Children of Veteris' pets often are horrendous looking creatures, though they aren't necessarily monsters. It all depends on the Child. However, as you would expect from a child, their artistic creations can be interesting looking. Aurora's pet was taken by the Queen, Leslie, and used to guard Earth's portal from anyone who was unlucky enough to visit Veteris using the Earth I portal.
The blood drained from Kaylee’s face and her knees wobbled. Crashing through the trees was an obscene looking beast with six legs, dragging a thick, spiked tail, its body covered in a scabrous exoskeleton. Where its head should be was a hump with hundreds of eyes, twisting back and forth. Below the eyes, rows of teeth filled powerful jaws at the end of a thick, armored neck. Without stopping, the creature raised itself up onto two legs, letting go an ear piercing roar. Its hoof-like limbs opened and six clawed fingers unfurled from each.