Get off my lawn [1/2]

At my call, seven {Portals} opened in front of me. Out of each one came one of my Sirens. They looked a little tired, but their eyes were all aglow with excitement.

I could feel it in their {Kindred} links. And unlike before, I welcomed their emotions and fused them with my own.

The Song of Sirens maneuver was simple in theory, but complex in execution. For one thing, it required an intricate series of steps. 

First, the Sirens had to open doorways and connect with each other. Once they did, rather than going through the {Portal} they had set up, they would relocate to another position.

Lilly's {Portals} worked on a simple premise. The door would stay open until the person who called it passed through. 

This meant that its use was normally quite limited, as the {Portal} would consume an incredible amount of stamina to keep it open.

The next limitation is that you cannot have more than two doors open at the same time.