A piece of writing

[The Book]

 "Sar" has monologue-driven narrative. There is a moment in the game when the protagonist, At Teuren, looks at the clerk in Guard headquarters. A monologue follows:
"
I didn't know the guy's name, to me he was just 'the clerk' and nothing more.
Every time I stepped through the narrow door to our humble fortress we exchanged looks; and this exchange carried more meaning than any verbal conversation.
As our looks met, so did our madness; each sprang from different source, each had its own, mute tongue.
Mine was a madness of hunter, hunting its prey down the empty streets.
This was the madness of constant alertness and insomnia.
His kind of madness was the opposite of mine.
It was a madness of infernal stasis; an eternity of motionlessness without a faintest hope for relocation.
This was the madness of constant boredom and insomnia.
Several times a week, these two kinds of damnation met in mute conversation that occured within the evanescent moment when we looked in each others eyes.
How close to each other we were; how alien at the same time. "

I'd like to ask english users to correct any stylistic or grammar mistakes in the monologue.

[Dreben ama Vreden]

"Mine was the madness of a hunter"

[The Book]

Thanks!

Does the text contain any other mistakes?

[YOke]

There's a bit of repetition regarding the madness of the clerk.
What if:

"I didn't know the guy's name, to me he was just 'the clerk' and nothing more.
Every time I stepped through the narrow door to our humble fortress we exchanged looks; and this exchange carried more meaning than any verbal conversation.
As our looks met, so did our madness; each sprang from different source, each had its own, mute tongue.
Mine was the madness of a hunter, hunting its prey down the empty streets; the madness of constant alertness and insomnia.
His kind of madness was one of constant boredom and infernal stasis, the complete opposite of mine.
Several times a week, these two madnesses - these two damnations - met in mute conversation that occured within the evanescent moment when our eyes met.
How close to each other we were; how alien at the same time. "

Made it a bit shorter and moved some of the words around.