Between the Realms

What is this place?
Where is this place?
When is this place?
It’s nowhere safe but here
You’re caught between the realms
Nicolas, listen!
There is a strong wall
It consists a magic of old
Still
There are many gates unguarded
She
Seed of an unholy union
Reborn whore of Babylon
Fulfills the ancient prophecy
And her power is increasing
But is there anything I can do?
You better be swift