While you have yet to discover an entire other realm, you’ve figured out a way to use natural darkness as a portal across the room, allowing you to move from shadow to shadow in a single step. 

Cost: One Rouse check

System: Spend your standard action to step into one shadow and exit from another, teleporting up to 50 steps in any direction. To use Shadowstep, you must step into a patch of natural darkness, or through your shadows you have created with Shadow Cast. Supernatural Darkness you have created with other Oblivion powers does not work with Shadowstep. You immediately exit from another natural shadow within your line of sight, as  though it were your next step. Shadowstep cannot normally be used in brightly lit areas and may require the use of Shadow Cast first. You may not use Shadowstep if you are Grappled.

You can bring another individual with you, so long as you hold her in a firm grip. To do so, you must Rouse the Blood one additional time to Shadowstep and bring the subject along. If the subject is unwilling, you must Grapple the target before using Shadowstep in this manner.

Duration: N/A