Now that we're firmly into the second half -- and heading towards the end -- of season two of 'Fringe,' let's talk about what's happened so far, and what we think might happen. Some of these speculations will mirror those I made last September, because not all of those questions have been answered yet. In fact, we may have more questions now than we did back then.

Still, with the episode titled 'Peter,' we finally started to get into the nitty-gritty about Walter stealing Peter from the alternate universe. Of course, we all knew this, but when will Peter find out, and who will tell him? That and lots of other questions spring to mind.

Will Peter learn the truth about his origins? Yes, I believe so, but the question is who will be the one to tell him? In last week's episode, 'Olivia. In the Lab. With a Revolver,' Olivia was determined to tell Peter the truth, but then decided against it after realizing that their family unit (Peter, Walter and Olivia) was more important than Peter knowing the truth. Then Walter decided that HE should be the one to tell Peter, painful as it might be. Walter knows there's a good chance that he could lose his son ... again. One other question is this: Walter visited Peter's grave in season one. If that grave is in this universe, why on earth would they use his real name on the gravestone? What if Peter stumbled across it?

(S02E16) "Somewhere, Peter will grow up, somewhere he will lead a proper life, somewhere he will be happy, but just not here. And we must take comfort in this. We must begin to move on." - Walter to Elizabeth, watching alt-Peter through the window to the other universe

I've said it before and I'll say it again: John Noble is a fantastic actor. With the flashback to 1985 in this episode, he completely morphed into a different Walter Bishop. And yet, you can see traces of the person that he is now, and because of all he's been through, you can understand how he got from there to here.

But he wasn't the monster that I thought he might be, based on some of the things we've learned about him since 'Fringe' began. Instead, he was a loving and caring husband and father who was obsessed with finding a cure for his son.

This episode has gotten a lot of hype, and it didn't disappoint. While it did answer a few questions, it posed even more questions, which will make the rest of the season exceedingly entertaining and possibly heartbreaking.

(S02E05) "Whether you admit it or not, your life is something of a nightmare." - Bowling Alley Guy to Olivia

For a minute there, I thought maybe we were in a True Blood crossover with the horned guy in the first few minutes of this episode. But no, it was the usual twisty-turny Fringe-isms involving mind control, computer chips and dream states.

And it appears that something many of us assumed had happened to Peter actually did happen -- though with this show, you can never be sure until it all plays out. It wouldn't surprise me if it's something completely different from what I'm assuming it is. All this, and Mysterious Bowling Alley Guy after the jump ...

(S02E04) "Momentum can be deferred, but it must always be paid back in full. As I always said to Walter, physics is a bitch." - William Bell to Olivia, on the dangers of jumping universes

Cryonics, frozen heads, worm juice, mercury blood, shapeshifters, and Leonard Nimoy were all featured in this episode, and I loved it all.

Let's start with the worm juice. Olivia must have been seriously craving her William Bell memories to drink that awful stuff. And what a trooper that she was able to keep it down, too. I guess it must have worked. She got some of her memories back, along with some help from the bell -- both the bell they chimed during Rebecca's psychedelic adventure and William Bell. Or Willem, as Olivia used to call him.

Is she right not to trust him? Could he have started the war? It's certainly possible, given his mysteriousness. He said for reasons she might understand later, he couldn't come back to this universe right now, possibly never. Why? What's he doing over there? Is he the one building the army? Is he being forced to? Will he and Walter face off eventually?

(S02E03) "Get my portable chemistry set ... this means bodies!" - Walter to Astrid

This episode of Fringe sort of went along without too many shocker moments -- until the last few minutes, that is. I wasn't all that surprised about the serum that turned people into human explosives, or even that it might be part of a top-secret military experiment. But I was wondering when our friend The Observer would turn up again in a big way and dump something spicy all over his plate of food.

(S01E19) It's an interesting premise. That we can have several different alternative realities, and if the brainwaves are hitting just right, we have the option to see more than one reality. Or in this case, more than one charred body.

I must say, Olivia handled it way better than I would have. I would have been FREAKING OUT and curled into a fetal position if the whole time-shift thing was happening before my eyes. But she took it all in stride, using it to help solve the case and find the twin sister in the lab. But oy ... what a shocker ...