Azurith: trap it with brick.

What it is

A blue crystal eel that swims through solid rock, leaving water where its path was. It is based on piddock clams, which bore their homes into solid stone.

Where and when it comes

• Far down in the deep rock, at least 70 metres under the ground, where the stone sweats water.
• It swims in on someone who is digging, 24 to 32 metres from them.
• After one is slain, another cannot come for about 35 minutes. The Codex hint is "Tunnels flooding far down".

How it fights

1. Swimming. It moves through solid rock at about 5 metres a second, turning the stone to water behind it.
2. Lashing. When it reaches you it lashes, for 18 damage within about 3.2 metres, every 2.2 seconds.
3. Flooding. Behind it, the stone it passed through turns to water and floods your tunnels.
4. Stranding. It cannot pass anything built, such as brick or glass. Line a tunnel with them and lure it into open air. Once stranded, it lies still for five seconds, and it takes double damage.

Where to hit it

It cannot be hurt inside rock, and blows glance off it in water. Strike it while it is stranded in open air.

Stats

Thing	Value
Health	700
Body	Ten joints, 1.3 metres apart
Lash	18 damage, every 2.2 seconds
Stranded for	5 seconds
Signature: Blue Quake	A ring 7.5 m round it, 14 damage, about every 12 seconds

Tips

• Dig tunnels lined with brick or glass, so it cannot follow you.
• Lure it out of the rock and into a pit of open air.
• When it is stranded, hit it hard and fast.

What it drops

Drop	Amount
Sapphire	5 to 10
Fluorite	8 to 15
Gold pieces	2 to 4
Trophy	Azurith Heart

← Back to the wiki · Last updated 25 October 2026. Mantlenaut is in alpha, so things change.