Phase spider matriarch

The phase spider matriarch was the name given to the massive phase spider that dwelled within the Whispering Depths caverns on the Sword Coast during the late 15 century DR.

"It is time. I will forever transcend this blasphemous flesh and refashion myself in the Queen's image."

Description
The matriarch was once a being of "organ and bone" who merely dreamed of taking a form more appeasing to her goddess Lolth.

Abilities
"They can sense my devotion. It draws them. I hear them in the shadows, whispers from the dark mother."

She kept most of her journals written in some manner of code, with notations added in common.

After her transformation, the matriarch learned to channel inner wrath. When she became severely injured, she would attack with greater force but became even more vulnerable to attacks from others.

Possessions
At some point in her existence, while in her arachnid form, the matriarch swallowed some humanoid creature wearing a set of poisoner's robes.

Activities
While in their humanoid form, the matriarch kept a small study and laboratory nestled within a cave in the upper reaches of the Whispering Depths.

History
"Today, I found the house of Lolth, and I shall be its Matriarch."

While in her non-arachnid form, the matriarch heard whispers from the darkness of the caves, which she interpreted as speech from Lolth herself. She believed this was her calling to undergo a transformation. Some time later, she received a pair of spiderstep boots, a gift from the spiders within the surrounding caves.

Some time later, the matriarch found the dead body of a drow arachnomancer. She believed this was yet another sign that the time of her transformation was at hand. Over the next while, it appeared as if she began to produce some manner of webbing from hher body.

During or before the, the matriarch made her final transition, taking on the form of the massive phase spider. She remained capable of laying and hatching large clutches of eggs.