Here is the full list of all 45 Moss: Book II achievements.
Finish the second book of Moss.
Defeat the Owl Tylan in the Pinnacle.
Knock a Screecher off a ledge.
Charge Quill's weapon while in alternate gravity.
Ascend to the Pinnacle alongside Quill.
Defeat the Warden in the Foundry.
Acquire Cariel's Hammer in the Foundry.
Enter the Foundry alongside Quill.
Reunite with Quill.
Enter the Depths alongside Sahima.
Use a controlled Forged enemy to block an attack.
Use your power as a Reader to break many objects.
Destroy a Forged enemy with a controlled Bomber.
Restore three stained glass windows.
Strike a Forged enemy twice with the same Charged Chakram attack.
Use the Charged Chakram ability in the Mountains.
Meet Sahima in the Mountains.
Defeat the Keeper in the Conservatory.
Collect half of the Relic Dust.
Acquire the Sword Dash ability in the Conservatory.
Enter the Conservatory alongside Quill.
Destroy a Ticker with a controlled Ticker.
Keep a controlled Ripper rolling continuously.
Enter the Garden alongside Quill.
Restore one stained glass window.
Acquire the Nature Attunement ability in the Sprite Realm.
Enter the Sprite Realm alongside Quill.
Give Quill a new look.
Enter your first Relic Shrine.
Defeat the Screechers on the way to the throne.
Use your power as a Reader to heal Quill for the first time.
Discover your first Forgotten Fragment.
Enter the Castle alongside Quill.
Restore all of the stained glass windows.
Enter the last Relic Shrine.
Defeat three Forged enemies with a single Hammer Trap attack.
Defeat three Forged enemies with a single Sword Dash attack.
Destroy a Scorcher with a controlled Scorcher.
Destroy an Armored Screecher with a piston.
Make Quill dizzy.
Discover a sealed door to another realm.
Destroy Forged enemies using each weapon in quick
Journey with Sahima without a single death.
Use Quill's sword to cut down a lot of grass.
Collect all of the Relic Dust.