The Pet Shalk is a medium-sized, insectoid creature with a chitinous exoskeleton featuring a dark, iridescent blue-green hue that shifts in light. Its body is segmented with a prominent, curved thorax and a slightly elongated abdomen, ending in a sharp, stinger-like appendage. The head is angular with large, multifaceted eyes that glow faintly in darker environments, and mandibles that are smooth yet look capable of delivering a nasty pinch. The legs are jointed and end in pointed tips, suitable for digging or gripping. The surface of the exoskeleton has a slightly rough texture, with subtle grooves and patterns that suggest natural armor. Occasionally, small, luminescent spots can be seen pulsing softly along its underside, hinting at a magical or bioluminescent nature.