Search for and destroy Oberon's root nodes - part 2 Overlord Guide
Last update: 11 May 2016
Go to Evernight - to the tree where Oberon's overslept (first right from the waypoint, across the bridge, then left and then just straight ahead). There's a path just before the tree (#1) - head this way and towards the water. Send blues to move the barrier in the water (#2). Then walk in the water along the root until the next node. Cut it (and watch out for the frogs).
Get out of the water and continue along the path to the Elves' Sacred Grove. There are spawning pits near by, too. If you've got some reds in your commando, make sure they won't burn the sacred tree. Kill the bloody unicorns and collect another tower object (#1) - now your health is increased even more. Come back to Oberon's tree. As you face it, take the path under the root to the left (#2).
Continue up the path and then down the stairs and further down. Send blues to turn the wheel across the water (#1). A bridge to the next cave will open. Head across, break the barrier and get in (#2).
Welcome to Skull Den. Follow the path and kill all the creatures in the way (#1). As you approach some shooting creatures will pop out of the ground, you'll meet some priests too. Remember exterminating the priests ASAP so they won't resurrect the others and head down the path until you find the next node to cut (#2) - do it. On your way back you'll see another tower object in the corridor to your left. Be careful cause some priests will show up as you come to it so kill them. Then send minions to carry the object to the waypoint - your mana has increased! Now follow your little guys out of the cave.
You'll see a wheel across from the exit (#1) so turn it and a bridge will form so you can access waypoint and spawning pits if you need more minions. Now head back to the cave entrance but don't get in just take the path right from it. Kill the troll you'll meet soon (#2), then even more trolls, and head up the path until you reach the temple. Come inside.