What Is The Key Harrison Wells Has On 'The Flash'? Eobard Thawne May Be Able To Unlock A Door To The Future

With only two episodes left of The Flash before its season finale, it's time to figure out what the heck Harrison Wells has been up to this whole time. For starters, we know that he's not exactly Harrison Wells, but rather Eobard Thawne, a distant relative of Eddie. He currently has Eddie holed up in some secret lair of his (Wells has a lot of secret lairs) and now he claims to have a "key" that will bring him back to the future. So, what kind of key does Wells have?

While Wells seems to have a lot of things on his agenda, the main one for him seems to be getting back to the future where he came from. If you remember back to the night Barry Allen's mother died, Wells (who at the time, still looked like Eobard) was beyond devastated to learn that he no longer had the power, or the speed, to return to the future. So he's spent the last 15 years of his life trying to find a way back, and supposedly, now he's got it.

During the last seconds of Tuesday's episode, "Grodd Lives," Wells claims to have this key to unlock the potential to get back to his future life. It's something blue-ish, gold-ish, seems to be glowing, and is in a tube. From the tube, he pulls out something that kind of looks like a tiny little flash drive — but certainly the key to getting to the future can't be something as mundane as a flash drive, right?

Wells inserts this tiny little key into a pop-out drive, and suddenly the lights around him illuminate. Um, first off, where the heck is he? At first glance, I assumed it was S.T.A.R. Labs. But the building was too long and open for it to be S.T.A.R. Labs, even if it were a part of the building we've never seen before. So where is he? Where is Wells with this secret area that will take him home — and don't forget he's still got Eddie in his clutches, too.

This key, and whole scenario, is even more mysterious than Wells. We don't know where he is, we don't know what he's got, we don't even know what he's doing, let alone what he wants with Eddie. It's time for Wells to give one of those "super villain reveals his grand plan" speeches, because with two episodes left, it's time for answers. This isn't playtime any more, Flash.

Image: Cate Cameron/The CW