| Watchtower Teleport Spell

Go to the northwestern side of Yanille and climb the handholds on the checkerboard building. Climb the ladder and talk to the wizard.

The wizard will ask you to find evidence of a theft. Go down two ladders, exit the building, and search the bushes outside for an eyepatch, fingernails, a dagger, and armor.

Return to the wizard inside the building. He will direct you to check with the ogre settlements around Yanille to navigate a cave complex.

Go west past the Yanille Gates to the ogre island and talk to Grew. He will ask you to retrieve a tooth from his enemy Gorad in the southeastern settlement.

Near Grew's Island is another settlement. Talk to Og, who will give you a key to retrieve gold stolen by Toban. Toban lives in the southeastern settlement.

Find Toban, give him his bones (implied from previous step, though not explicitly stated in source), and get the relic piece. Return to Og and Grew. You will receive three relic parts and a crystal part.

Take the relic parts to the wizard. If you give him all three, he will give you an assembled statue. Keep the crystal part; it is one of four needed for the quest.

Outside the Yanille Gates, near Stonehenge and the first ogre island, find a road above some caves. Follow this road northwest. With the statue, ogre guards will let you pass.

In the center of the ogre mountain, you'll find a marketplace. Steal from the stall to the southwest to get a cake to give to a guard at the southwest corner battlements. Do not eat the cakes, as they cause fatigue. Beware of a poison spider on this road; bring a cure poison.

Further down the road, you'll encounter guards near a jump. Pay them 20 gp to cross.

The next set of guards will ask a riddle. The answer is 'death rune'. Give them a death rune to receive a map.

Take the southeastern path near Stonehenge. Next to the guards at that gate is a cave. Enter and talk to the scavids to begin learning their language. Visit all small caves, talk to one scavid in each, and give the correct response to each.

Go to the southeastern gate with one gold bar to bribe the guards. Cross the bridge and enter the cave to speak with the mad scavids. Give them the proper response to receive the 2nd crystal. A nightshade spawn is in this cave; pick it up.

Go to the marketplace cave and use the nightshade plant on the guards. Be cautious of powerful creatures like blue dragons and ogre chieftains. Do not talk to the ogre shamans. Go to the western side of the cave, pick up the shaman's robe, and search it to find the third crystal. (Note: The source mentions potentially getting another 3rd crystal from the shaman after destroying them, which might be a bug).

Return to the wizard. He will explain how to make a potion to destroy the shamans. Gather janger berries from ogre isle, guam leaf, a vial, and ground bat bones. Mix them in this order: 1. Guam leaves with the vial. 2. Janger berries with the unfinished potion. 3. Ground bat bones. Any other order will cause an explosion and damage.

Take the enchanted potion back to the wizard.

Return to the ogre merchants cave. Use the nightshade on the guard, then use your potion on all six ogre shamans. Mine the boulder in the center of the room with your pickaxe to get the fourth crystal.

Go back to the wizard and talk to him twice. He will ask you to pull a lever to activate the magic shield. He will then give you your reward.