The experts discussed it:
"This is a broadcast into space. The power has to be high, which means the module has to be large. But with just this tiny projectile, there's too little room to work with!"
"We could try lengthening the projectile. The power supply is easy enough, at least. We have Energy Blocks, so that's good news."
"Right, it needs shielding against interference from cosmic radiation. We can't have it go mute from a little interference as soon as it gets through."
"Adaptation to Kona Base Coding is complete. Mathematical constants, the element sequence, Blue Star's approximate location, and the Great Xia Civilization Identifier have all been compressed into the first broadcast."
Han Niba nodded, then added:
"Leave out Blue Star's precise coordinates."
No one in the hall objected.
Contacting the Kona Civilization did not mean putting their home address on display.
They wanted the other side to know that there was another civilization in the Milky Way's Orion Arm fighting the Demon Clan, but they could not let any information become a future liability.
Before long, the military manufacturing system sent back the initial structural drawings.
The Custom Communication Shell looked like an elongated black armor-piercing shell. Its outer casing used a heat-resistant composite alloy, while a miniature Energy Block, a broadcast module, and a single-use deployable antenna were embedded inside.
It had only one mission.
To pass through the wormhole, awaken three thousand light-years away, and keep telling the Kona Civilization-you are not fighting alone. We are here!
After reviewing the final specification, Han Niba said in a low voice:
"Begin production immediately."
With that order, the military workshops in the Underground City sprang into action.
Automated production lines ran at high speed beneath cool white lights. Alloy blanks were cut into shape, miniature arrays were