- Contact the Oracle of Dawn.
- Lysander, Proetho, and the best two other heroes (max level 25)
If you approach the quest gate, you'll find that you need to give up 10,000 gold in order to pass. You start with 5,000 gold, and there are enough treasure chests nearby to give you the rest. But a better plan is to take the portal in the corner and explore the area it leads to. You'll have to defeat some stacks of gargoyles and trolls (which shouldn't be too bad if your heroes all learned combat), but your reward is a gold mine plus several piles of gold. With that gold in hand, you can use the treasure chests next to the quest gate for experience instead.
The second quest gate is to the west at location (29,26). It requires that you have the Sword of the Gods. The sword is located in the southeastern corner of the map, but it's guarded by some efreeti and friends. This should be a tough battle, but luckily you can recruit some crusaders and monks in the area, and there is a tree of knowledge nearby so you can gain a level first. If the battle still gives you problems, then you can just wait for more crusaders and monks to show up, and eventually you should be able to overpower the creatures. Otherwise, just make use of spells like song of peace and mass heal and bludgeon your way through the fight.
The third quest gate is located underground at (35,44). Along the way you should pick up Saint Ranan's Staff (guarded by some nature creatures), because that's what the gate wants.
Following the path underground, you'll come to the last quest gate at (65,36). It will only allow the ôtwo who are oneö to pass, which means you need to find Lysander. Nearby is a purple dragon portal. When you go through you'll discover the tunnel to the north has changed, and that there's now a new area for you to explore. At the back is a portal leading to a pandora's box. Open the box to receive Lysander back (and get an angel in your army). Then take the blue dragon portal back to the quest gate and go through.
Now you just need to go back up to the surface and follow the trail to the oracle's house. Once you get there, the scenario will end.