Seeking Your Roots
Quest From: -;
While travelling around Cyrodiil, you'll eventually find a mysterious plant ingredient known as Nirnroot. When you have one, go to any Mages Guild branch and talk to their alchemist for a piece of advice. You'll be forwarded to Sinderion, who lives in West Weald Inn basement. As you might have guessed, the rest of this quest is a big and tiresome scavenger hunt.
Sinderion wants you to bring him 10 roots, and will point you towards a grove to the north where you'll find some of them. Well, that's but the pick of an iceberg, as Seeking Your Roots is easily the longest quest in Oblivion. You can find Nirnroot in all kinds of random places, usually near water.
Sinderion will mix the ingredients you bring him according to their number. The reward for completing this quest isn't really worth the trouble if you ask me. If you feel like picking roots instead of fighting beasts and saving princesses, fine by me. To finish the quest, you'll have to find 100 Nirnroots. After doing so, Sinderion will pay 250 Gold for each 10 more you bring him. You, on the other hand, can spend money by buying various versions of Nirnroot Potion.
Quest From: yourself?
If you find yourself as a vampire and don't feel comfortable about it, there is a way to get rid of the disease. Talk to a chapel priest or Vicente (Dark Brotherhood) about the Vampire Cure. The topic sometimes appears while talking to entirely random NPCs, and the effect is always the same.
You'll be told to go to Raminus Polus, whom you surely know if you've already started doing the mages guild. He's in Arch-Mages Lobby at Arcane University. He'll tell you that Count Hassildor of Skingrad might be able to help you.
The Count is looking for a cure for his wife, who rejected her vampirism and refused to feed, which lead to her falling in some kind of coma. Hassildor will tell you to go to Drakelowe and find a witch who is supposed to know the secret of the cure.
Melisande wants a favor before she will help you. You are to find and bring her 5 Grand Soul Gems. They can be bought in Mages Guild branches in most cities, and found in various random locations.
When you bring her the gems, time will come to find the real ingredients of the potion itself. You'll need 6 units of Garlic (check out cellars in some of Skingrad's mansions), five leaves of Nightshade (see Main Ingredient in Imperial City Market District), two samples of Bloodgrass (Oblivion plane), an Argonian's blood and ashes of a certain vampire.
Argonian blood is relatively easy to get, you just have to attack anyone of that race with the Enchanted Dagger Melisande gives you. It doesn't matter who the Argonian is, so it's simple. Remember, you can attack daedric worshipers without being punished in any way (see Peryite's Shrine for an Argonian).
The vampire you have to kill for his ashes is in Redwater Slough (map above). You have to find and kill Hindaril (C). In A there's a key that you can use to open door in B (or you can pick the Very Hard lock in it). Hindaril is accompanied by some lower-level vampires and undead. When you defeat him, head back to Melisande.
You'll get two samples of the potion: one for you and one for count's wife. Go back to Castle Skingrad and talk to the butler. Follow her to Hassildor's quarters. After a scene you'll be left alone. Wait 24 hours, and Janus will reward you with a bit of gold.
HINT: You can drink the potion any time you want, it will instantly bring you back to normal.
Quest From: Thorley Aethelred (Shardrock, 2s14);
Thorley has a serious problem with bears attacking his sheep. You are to kill 6 of them and bring him back their fangs (West Weald Bear Fangs) as a proof. Look around the farm, you won't have any problems finding them (you can use Detect Life to speed things up). When you have 6 fangs, go back to the farmer to get a book Battle for Sancre Tor (increases your Blade skill).
Quest From: Barthel Gernand (Crestbride Camp, 8s30);
Barthel will tell you to talk to Mirisa about the goblins. It turns out there are two tribes fighting each other nearby, which keeps the settlers from taking Cropsford. You have to end the goblin war by performing one of two deeds: steal a Totem Head from Timberscar Cave or kill a shaman in Cracked Wood Cave.
Both ways are good, but the "sneaky" one seems quicker and easier. The way through the cave isn't too well guarded and you shouldn't have real problems.
Either way you choose, after solving the problem talk to Mirisa and Barthel again.
Quest From: Aelwin Merowald (Weye, 5s35);
Aelwin is a fisherman who needs your help in collecting 12 Slaughterfish Scales. This quest is quite simple, because you always have an appropriate map marker, indicating the position of a next fish. When you kill a dozen of them, go back to Aelwin to get your reward - Jewel of the Rumare (ring that allows you to breathe under water).
The Gravefinder's Repose
Quest From: Malene (Roxey Inn, 5s52);
Innkeeper Malene wants you to get rid of a necromancer Raelynn the Gravefinder, who stations in Moss Rock Cavern a little bit to the north. This is a one-level dungeon. Your victim is in a closed room, behind the door with a Hard lock in it. If you can't open it, the key is in a chest to the north.
Malene will give you some gold for performing this quest.
No Stone Unturned
Quest From: Lithnilian (Imperial Bridge Inn, 8s16);
Lithnilian wants you to find his precious notes in Bramblepoint Cave. The cave is bigger than you might expect - and it's full of hostile creatures as well. Your target (Lithnilian's Research Notes) is in a chest on a third level. When you give them back to Lithnilian, you'll get a few potions in exchange.
The Potato Snatcher
Quest From: S'jirra (Faregyl Inn, 5s3);
Khajiit named S'jirra will ask you to find her lost potatoes (?!). A new map marker will be added, indicating the position of an ogre who stole them. Kill him and take the vegetables. When you give them back to S'jirra, you'll get some of S'jirra's Famous Potato Bread. Now that was a quest worthy of Tamriel's greatest heroes.
Revenge Served Cold
Quest From: Corrick Northwode (Harm's Folly, 9s34);
Corrick wants you to avenge his late wife by going to Exhausted Mine and killing the goblins that occupy it. You don't have to kill all of them, it seems. Just kill their leader (he's the one marked on the map) and take Jade Amulet from him. Go back to Corrick with it and you'll get a few jewels.
The Sunken One
Quest From: none (Shetcombe Farm, 1s21);
When you enter Shetcombe Farm, you'll see that it's been abandoned not long ago. There's a note on the table, read it. Go to Sandstone Cavern north of here.
The cave is full of random leveled creatures. Follow the map marker to find another note. Go to the lower level to find the body of its author. There will be a bag with some valuable jewels next to it. That's all, nothing else to do here.
A Venerable Vintage
Quest From: Nerussa (Wawnet Inn, 5s34);
Nerussa wants you to find 6 bottles of Shadowbanish Wine. They can be found in most Forts around Cyrodiil. Below are three examples of wine's whereabouts. You'll get 100 Gold for doing this one.
When the Vow Breaks
Quest From: Maeva the Buxom (Whitmond Farm, 1s15);
Maeva will tell you to reclaim her family mace, Rockshatter, from the hands of her husband Bjalfi. Go to Fort Strand and to the lower level, Fort Strand Great Dome. Bjalfi will be there, surrounded by his fellow bandits. You'll have to slash your way through them. When you retrieve the mace, go back to Maeva to get some gold as a reward.
Quest From: Diram Serethi (Aleswell, 5s50);
Visit Aleswell and wander around the town. Where is everybody? In a few moments you'll be approached by Diram Serethi. It turns out the townsfolk has been turned invisible by a mage named Ancotar. Go to Fort Caractacus to talk to him.
You don't get to fight him, surprisingly. Just tell him about everything and you'll get a scroll with the appropriate counter spell. Talk to him once again and you'll be given a ring which is supposed to protect you from negative effects of casting that spell (-50 Luck, reversible by Restore Luck). When you're back in the village, cast the spell from the scroll. You'll be considered a hero and Diram will grant you a free room in his inn any time you'll want to rest.