10 years after E-day

Adam Fenix was the first to discover the Locust and he found one of their Hollow tunnels and traced it. He then began to find more and more tunnels throughout Sera, finding each through the use of Geobots. Which would explain why Baird found that Geobot right out of the Imulsion factory and why it was carrying so much tunnel data. The Geobot was likely trying to resurface and download its data. After collecting all the data, Adam put all the tunnel data pieces together and thus came up with what Marcus Fenix found at his house.

Then he noticed a large spot in the planet's crust where all the tunnels seemed to be spawning from. For some reason instead of using a geobot to find out what was there, he went down himself. When he was down in the hollows, he "somehow" discovered that if Jacinto were sunk then there would be enough Ocean water to flood the Hollow. Adam kept making several travels down to the Hollow going back and forth from the East Barricade Academy. What he didn't know is that the Locust were stalking him, and the Queen "For some reason" would not allow them to attack, but to just observe what he's doing.

Eventually, the Locust did attack his home, the day that Marcus left his post to save him, and what they wanted must've been very important since General Raam led the attack on his Mansion. They scowered the house searching for the Tunnel data that Adam had found, but couldn't find it since he had it locked in that secret room. Adam Fenix, presumably dead, indeed did escape via the way that takes him down to the Hollow.