However, to reach the library you must traverse the Ruined Atoll.
If only everything could be that easy!
Use the telescope if you want to get a nice view of the area and see your overall objective.
To activate them, you must first find the Grappling Hook in the Frog Domain.
Continue East of the statue in the centre and follow the dead power line across the water.
On the other side, turn left and follow the slopes up to the power block at the top.
Pray here to activate it, and then make your way back to the entrance again.
On the other side, you’ll find two Husher birds eating a dead Slorm.
Kill these birds and then launch the North gate to open a shortcut back to the central statue.
Head back up to the statue and go East to find some grapple points.
Use your Grappling Hook to cross the water and then kill the Crabbo nearby.
You’ll find the final power block at the top of the ladders nearby.
After activating the final power block, head to the central statue and pray to make it lift.
Grapple over the broken bridge and then continue grappling around the corner to the right.
Climb the ladders and go through the door to enter The Great Library.
Head down the ladders and climb the stairs on the North side to find another set of ladders.
Continue climbing and follow the path around until you reach another large chamber.
When you’re ready, climb the ladders nearby to head up to the next boss fight.
At the top of this tower, you will find the Librarian.
This is an incredibly tough boss fight, so check that you have levelled up plenty.
After defeating the Librarian, grab the green key from their body and head back into the Library.
Fast travel back to the Overworld and make your way to the Sealed Temple to deliver this key.
That covers everything you gotta know to survive the Ruined Atoll and get the green key in Tunic.
If you aren’t sure what to do next, check out ourcomplete Tunic walkthroughto discover your next steps.
