I′ve found the first two fragment′s and I′m down to the last one but the door is locked and can only be opened with a key. I would be greatful if somebody could tell me were the key is!

you have to join the mages guild to get let in there

Please do not post Spoilers in General.

People come to General to learn about the game without learning about what happens in the game. If they want to know about what happens, that is what the Cheats, Hints and Spoilers section is for.

Do not use quest details or location specific details related to quests/puzzles/NPCs in your posts in this section. General is for discussing gameplay and mechanics and general topics about the the game including but not limited to races, items and their use, magic, enchanting, skills, character builds, criticism, praise, funny random things that happen, places from an esthetic standpoint and and other general topics.

Use the Spoilers Section if you have to post quest details or other spoilers or a thread about the same. I will move this now.

okey and were are the mages guilde? I have not played as a mage so i don′t know were the guild is!

Go to Winterhold. The College of Winterhold is there.

okay thanks man