How do I obtain and upgrade a skill? 12 October 2022 15:03 Updated You can obtain or upgrade a skill by reading a skill book. Search for skill books wherever you might go in Grim Soul. Related articles What is an “Active Skill”? How do I open the second quick slot? Why are there items which I can’t use for anything? What is a “Passive Skill”? How can I reset the game from the beginning on Android?