Skyrim Under Saarthal Walkthrough

Skyrim Under Saarthal quest is giving people pain in the ass since there are a lot of people seeking help in the internet to complete this quest. I know that this Skyrim Under Saarthal really gives you confusion on how to work the puzzles on, especially the second one. I will explain it from the start, so, read on.Skyrim Under Saarthal quest can be activated by talking to Tolfdir of Winterhold