If you’re trying to track down Spine Cores in Hollow Knight: Silksong, this guide will walk you through everything you need to know. Spine Cores are special items that drop from a certain enemy and are also needed for the Flexile Spines quest, which rewards you with a very useful upgrade for exploring the world. In this guide, we’ll cover where to find Spine Cores, how to farm them efficiently, and how to start and complete the quest tied to them.
Spine Core Locations in Hollow Knight Silksong

If you’re looking for Spine Cores in Hollow Knight: Silksong, you’ll need to farm them from Hokers. These are the floating enemies with spikes poking out of them.
You can find a bunch of them in the caves east of this room. When you hit a Hoker, it will shoot its spikes out in the direction it’s facing. That’s exactly what you want. Don’t kill it right away it only takes about three hits to go down just strike it and wait for the spikes to fire off.

Sometimes the spikes will fly too far to reach, but other times they’ll stick into the ground or a nearby wall. When you spot one lodged in, hit it to make a Spine Core drop. Each Hoker can give you multiple Spine Cores this way, and since there are lots of them around, you won’t run out of chances to collect plenty.
Flexile Spines quest in Hollow Knight: Silksong

To start the Flexile Spines quest in Hollow Knight: Silksong, you’ll first need to meet the Seamstress. Head out to the Far Fields and take the lower path until you come to a wide open area. From there, look for a way to climb up, and you’ll eventually spot a balloon-shaped house. Go inside, and you’ll find the Seamstress waiting.
Talk to her, and she’ll give you the Flexile Spines quest. Your goal is simple: collect 25 Spine Cores. Once you finish, your reward will be the Drifter’s Cloak. This handy upgrade makes traveling much easier, letting you catch wind currents or glide slowly through the air. It’s a big help for exploration.