Spirit of the North: Enhanced Edition

The first 3 tethers will be destroyed to finish chapter 3. You will reach 8 somewhere around chapter 4. If you replay some parts you will get it earlier as it is stackable.

Full and fast guide below:


Timestamps:

00:00 Intro
00:27 Ch1: Foxin’ Around, Fetch and A Guardian Forgotten Achievements + Shaman Spirits 1-3
06:12 Ch2: Awaken and Infused with Light Achievements + Shaman Spirits 4,5
08:17 Ch3: Spirit Bark Achievement + Ancient Mural Type 1/8 + Shaman Spirits 6-8
16:30 Ch3: Eradicate Achievement
17:22 Ch4: Spirit Form Achievement + Shaman Spirits 9,10
20:05 Ch4: Blooms of Light and Old Companion Achievements + Ancient Mural Type 2/8 + Shaman Spirits 11,12
23:33 Ch4: Uprooting Darkness Achievement + Glyph Sets 1,2/12 + Ancient Mural 3/8
25:30 Ch4: Weightless and Written in Stone Achievements + Glyph Set 3/12 + Ancient Mural Type 4,5/8 Shaman Spirit 13,14,15
31:38 Ch5: Spirit Dash Achievement + Glyph Set 4/12 + Ancient Mural Type 5/8 + Shaman Spirit 16
34:42 Ch5: Garden of Light and Ancient History Achievements + Glyph Sets 5,6/12 + Ancient Mural 6,7,8/8 + Shaman spirits 17-19
39:21 Ch5: Best Friends and Fox? Or Flying Squirrel? Achievements + Shaman Spirits 20,21
43:45 Ch5: Glyph Sets 7,8,9/12 + Shaman Spirits 22,23
49:22 Ch5: Match Maker Achievement + Glyph Sets 10,11,12/12 + Shaman Spirit 24
51:57 Ch6: Plague Doctor Achievement + Shaman Spirit 25,26
53:56 Ch6: None Forgotten Achievement Shaman Spirit 27,28
57:26 Ch7: Kindred Spirits and Spirited Away Achievements
1:06:40 Ch8: Norther Lights Achievement

Please see

for destroying 18 plague tethers.

But they are the red bulbous things that make your fox sneeze that you have to destroy with your charged bark. Destroying these is story related and cannot be missed.