Trap revealed

"They started to move." A mage slayer trailing behind the army spoke on the communicator to his companions. He had been following the human army silently for the past few days, but he began to move actively now that the battle was about to begin.

"Call the elder of darkness." One of the unit captains spoke up and one of them removed a bracelet with a purple crystal.

Communication items used teleportation crystals for long-distance communication, as it would be impossible for a single mage to have enough mana to connect over great distances.

The teleportation crystals would use the resonance with the other crystals as a signal, greatly reducing the amount of mana spent to activate them.

"Has begun?" The dark elder Louis Zahara asked as soon as the call was connected.

"Yes sir, but things are a little different than expected. What are your orders?" One of the captains asked just to confirm as they reported what the fortress looked like.