This area of the game is considered late game, so you have been warned!
this area is almost the smallest in hollow knight, second to only collossuem of fools which had Five trasitions. the items you get in this area are mainly very good and will give you a very big boost of power. the items you get are as follows.
items
shade cloak
abyss shriek
charms
life blood heart
void heart
collectibles
arcane egg
arcane egg
arcane egg
journel entries
siblings
Void tendrils
Heres how to get them for your self.
first things first heres the equipment you will need to get to the abyss. you will need,
mantis claw
mothwing cloak
monarch wings
kings brand
On your Second visit
kingsoul
With those items you will be able to get into and out of the abyss with every item. to get all the items check there respective area. once you have all of the items, go to ancient basin, where you will find an area that goes down to a massive door. it will only open if you have the kins brand, but once it does open you have the abilty to leave and enter the area at will. the door will lead to a massive drop, don't worry, you can't take fall damage. once you reach the bottom of the area you can go either left or right. left is the only to an spell uprade, so unless you have howling wraiths don't go. if you do then go the left and preform the spell on the platform to get the spell, abyss shriek. when moving right, when you reach a sea of void. climb up the light house and turn the light on, but be careful of the siblings, they deal 2 masks of damage. once you make it over the sea of void you will want to continue right, then go up and hop into the bowl of void and be proud, you have shade cloak now! on your way back if you go the bottom route with shade cloak, you will be able to get an arcane egg. with that, you can leave and come back later. which will be the case for the next charm you need, kingsoul.