Please refer the video timestamp for your easy navigation
00:19 – Lorestone 1
01:48 – River of knives
04:24 – Lorestone 2
07:00 – How to open the first Rune gate
09:35 – Lorestone 3
11:00 – Fight begins achievement. Hand Rots. First Fight
13:42 – Rot mechanism explained
16:56 – Which door to chose (Surt or Valravan)
17:42 – Lorestone 4