Rips in space/time continuum, so I guess that's a portal? Kind of imagine it looks like a mage portal in Warcraft. You can kinda see what's on the other side, but don't REALLY know when and where it is until you step through it.
hmm.. Speaking of Warcraft and Time travel.. There's a quest in caverns of time. Quite a few years ago, some thugs stole a guy's favorite hat. So, The guy sends you back in time to get his hat from his younger self and bring it to him in the future. So, You go back in time, beat up his younger self and take his hat before the thugs steal it from him. Turns out you were the thugs that stole the hat in the first place
