Time Portal Update! Omeganet, extra-strong encryption

[omegamods]

Okay, Omegafriends: We've identified seven time portals in the city. However, without our resources at the Omegabase, we only have enough energy to open one of them. Lady Blue has to be hiding behind one of them, so we've only got a single shot at getting this right.

Portal destinations:

6,500,000,000 BC
5,321,958 BC
215 BC
1021 AD
1611 AD
1999 AD
5050 AD

One of these portals will get us back on her trail - but which one?

Comments

Video

[6billioncreditwoman]

Everyone remembered to write down the letters on the stone before trying to break in, right? And did anyone get an analysis on that orb?

[zenithguard]

I've actually become something of an expert on BCE history in researching my powers. If you need an expert for 215, I'll at least be on the short list, if not actually our best bet.

audio

[astronomically]

What was the clue she left behind for us? We need to work that out before we go opening any portals!