Theory number 3.

[Mystic]

Why would you assume that consciousness, whatever that means to you, arose in a single mutation? Do you mean a "consciousness" like our own? That took fair few more than one, so far as we can tell.

Well there would have to be logically a lot of steps (perhaps millions) to get to consciousness from unconsciousness. But at the same time, there has to be a point where it's actually conscious as opposed to not. But before that, it's not conscious. So there has to millions of steps but at the same time, there has to be but one step as well. Hence you have the problem. Aside from that, is it even possible that it heading to that direction by natural selection, as opposed to simply a computer like receiving im puts?

On the other hand, how would you be proposing that consciousness was gained? Magic?

It's highly possible.

When did that magic occur, does it occur at some indefinite point before (or during) every human birth?

I don't know. I don't see the relevance though.

Are we the only "conscious" creatures?

Don't seem to be. I am not inclined to believe that animals are just machines acting as if they have a conscious without one. They seem to run on emotions, fear, love, attraction, pleasure, selfishness, etc...

Assuming that this magic does not or did not occur at the moment of birth, if consciousness is somehow inherited as a part of this creators design then clearly biology (and evolution) are capable of handling that, because here we are, products of the same.

This is non-sequitur, if consciousness is solely created by biological/physical, it doesn't mean evolution was capable of producing it.