Okay, this might sound odd, and I'm probably going to answer these questions myself, but here goes: 1. I'm struggling a little with my MC (or rather, MCs), because there are techincally five of them, but I want to focus on one in particular, Isaac. The problem is, he's not seen or heard from for the first quarter of the novel, meaning that the story focuses on John, the captain. So, what I want to know is: Is it possilbe to switch focus around a third of a way into the novel without it seeming like John is relegated? (I know someone's going to asnwer with "If you can write it, it can be done" but I'm actually looking for your honest opinion) 2. I want Isaac to be practically invincible. He's a product of bio-mechanical experimentation, pretty much a cyborg, who is bulletproof (in the way that they can't harm him but still puncture his skin), can lift several tonnes and has very very small plasma projecters in the pores on his palms and soles, basically giving him extremely powerful weapons in his hands and the ability to fly within the atmosphere. However, as he himself thinks he's invincible, would it be too much of a cliche for him to be confronted with so0mething that could actually kill him and he be terrified by it?