John saw Jack go into the sewers and quickly followed after him. Once in the sewers he followed the sounds of the hero and possibly the villain he was fighting. He eyes soon spotted Jack as John rounded a corner in the sewer tunnels and just as Jack created a powerful blast of energy. John cursed as the blast came towards and he created a large wall of water using his environmental construct ability to take to brunt of the blast. It still managed to knock him back a few feet but he quickly recovered and looked to see if the hero needed any assistance. He hoped that the man wasn't too careless with his energy attacks otherwise he could cause a cave in.