Walkthrough EditUpon returning to the Sea Scholar with the Magnifying Glass, he will tell you the following:
The Potion of Trials may only be used at night. When you drink it, the message 'The Cursed Queen is near...' will appear and a few seconds will pass before you lose 30 health points and the Cursed Queen appears.
Be sure to have at least 31 health points before drinking the potion, or it will kill you.
Fighting the Cursed Queen is similar to the Spider Queen, in that she deals a large amount of poison damage on top of every one of her attacks. As such, it is a good idea to keep Bandages and White Flower Potions on hand in order to counter her poison.
When she has been defeating, loot her corpse to finally get the Treasure Hunter's Scimitar!