In 2719 AD, as the last drop of coolant dripped from the condensation pipes of the abandoned military space station "Anvil-7" on the edge of the Orion Arm💧, interstellar scavenger Kaelum's fingertips brushed the non-slip grip of this "Abyss Echo: Cobalt Void Serrated Dagger". This was a relic he dug out from the locked bio-weapon lab deep in the space station⚰️. The hollow grooves on the blade were not for lightweight design - the encrypted database of the old empire he cracked showed that these grooves were the guide paths for subspace energy, and the serrated structure inside the blade could precisely tear the weak barriers of low-dimensional space🌌.

Three days ago, when Kaelum left the space station with this dagger on his jump ship "Rusty Albatross", the subspace detector on the ship began to emit irregular beeps🔊. He tried to bombard the blade with a plasma cutting gun, but the high-temperature plasma was sucked into an invisible vortex, leaving only a fleeting pale blue spot on the surface of the dagger💫. Last night, the jump stabilization system of the bridge suddenly crashed, and the star tracks outside the porthole began to twist into a strange spiral, a sign that subspace creatures were about to materialize⚠️.

Kaelum suddenly pulled out the dagger, and the concave holes on the grip transmitted a bone-chilling cold, as if countless thin tentacles were drilling into his blood vessels along his finger bones🩸. He turned on the external observer of the bridge, and saw a mass of sticky purple mist clinging to the hull shell, with countless pupils without whites faintly emerging from the mist👁️. At this moment, he finally found a worn imperial inscription at the bottom of the dagger's grip: "Whoever holds this blade shall be the guide of the abyss". Kaelum's breath suddenly stopped - he thought he had picked up a rare treasure, but he didn't know that he had long become the key for subspace residents to descend into the real universe🔑. The metal shell of the ship began to emit an overwhelmed creak, and the purple mist slowly seeped through the sealed hatch of the bridge, while the hollow grooves of the dagger slowly lit up with a faint blue glow...