You have just experienced an encounter with a dragon and told Jarl Balgruf of Whiterun about the danger. The next stage of your journey will be the search for Dragonstone, and you will go to the mountains, to the very heart of Skyrim. But how do you find the Dragonstone?
Step 1. Start the quest "Windy Peak." We can say that this quest is one of the initial ones: you are sent to warn Jarl Balgruf in Whiterun. When you transmit the message, the Jarl will ask you to speak with Farengar Secret Fire, his court mage. Farengar will explain to you that he is looking for Dragonstone and will direct you to Windfall Peak. Thus, a marker will appear on the map by which you will come to Windy Peak.
If you have already completed the Golden Claw quest, then it may turn out that the Dragonstone is already in your inventory, since in this quest you will follow the same path as in the Windy Peak quest. You will not be able to sell or discard the Dragonstone from your inventory, so it will definitely remain with you until you give it to Farengar at the end of the Windy Peak quest
Step 2. Get to Windy Peak
The fastest way to Windfall Peak is south of Whiterun. You will need to find a trail from the northern slope of the mountain that leads to the very Windy Peak; there are the least dangers on this path. Most often, players follow the path from Riverwood: here you need to cross the bridge to the north of the village, and then turn northwest, following the winding path that leads to the peak. However, along the way, you will encounter aggressive forest animals (most often wolves) and several bandits near an abandoned tower.
Be careful when approaching the peak, as you will encounter half a dozen bandits at the entrance. In the open space of this location, enemy archers will have a great opportunity to fill you with arrows, so join the battle near the columns that will cover you while you deal with the bandits in close combat
Step 3. Enter Windy Peak
When you descend into the mound for the first time, you will notice that there are many human remains and spiteful rats all around. Sneak further and you will hear the bandits discussing someone named Arvel who escaped with some kind of golden claw. If you haven't started the Golden Claw quest yet, it will start right now. Kill the bandits and move deeper into the mound.
Step 4. Solve the pillar puzzle
Moving forward, you will eventually meet a bandit with a torch who runs into a room with a puzzle inside. Let him pull the lever and he will die from the darts of the triggered trap. Now go forward and study the symbols around (one on the ground, two on the wall). Pay attention to the animals that are depicted on the columns and turn them in the desired pattern towards you. From left to right, these symbols should appear as follows: snake-snake-whale. Pull all the levers you want and continue on your way.
Be careful when you go down the spiral staircase, as bad guys will start running out at you. Stay at the top of the stairs so that they cannot surround you, and you would kill one malevolent at a time
Step 5. Kill the giant spider
After a while, you will find yourself in a place covered with cobwebs, while someone will call for help. Walk carefully into the back of the room. You will see that someone is entangled in the web. A frosty spider will come down from above, with which you will need to fight. Kill the spider and talk to the trapped man who turns out to be Arvel the Swift.
If you find it difficult to fight the spider, retreat through the front door of the room. The spider cannot go through this door. Heal with spells or ranged weapons and kill the spider from afar. Remember that the spider can still poison you. Dodge when the spider is on its hind legs, as this means that it is about to spit poison at you
Step 6. Free Arvel Swift
Talk to Arvel to ask him about the whereabouts of the claw, and he will agree to show you how everything works in exchange for you freeing him. Use melee weapons or magic to destroy the web that binds him hand and foot. Arvel will fall down, and then quickly run deep into the mound, trying to escape from you. He will be stabbed to death by a restless draugr or stumble upon a wall of thorns by stepping on a trap plate. Kill the draugr and loot Arvel's body to retrieve the Golden Claw. As soon as you have the claw, go deeper into the mound, bypassing the traps and killing the draugr.
Step 7. Enter the sanctuary
You will soon find yourself in front of a closed door with stone rings revolving around a keyhole. Open your inventory, select the Golden Claw and examine it. Turn it so that the claw is facing you and study the symbols that are depicted on it: bear-moth-owl. Rotate the rings around the keyhole to make this combination, and the door will open a door, behind which is the entrance to the Shrine of Windfall Peak.
Step 8. Take the Dragonstone
Upon entering the sanctuary, you will find yourself in a spacious room with waterfalls and a protruding wall inscribed with strange symbols. You will hear voices that will sound louder as you walk towards the wall. When you come close to the wall, the screen will darken and one word on the wall will glow bright white, and thus you will learn the Word of Power from the Wall of Words. Once you learn the Word of Power, the sarcophagus behind you will open and a high-level draugr boss will emerge from it. Kill this draugr and then search the body for a Dragonstone.
Step 9. Find the exit from the sanctuary
You will not need to walk back the same path to leave the mound. Just go to the quest marker to find a secret exit that will lead you out of the mound and allow you to move to Whiterun or Dragon's Reach (from the last location, get to Farengar faster).
Step 10. Give the Dragonstone to Farengar
Continue following the quest marker and you will meet Farengar talking to a woman named Delphine. Hear what they have to say to learn more about the return of the dragons, then talk to Farengar, give him the Dragonstone and complete the Windy Peak quest.