If Amy and Tina knew how much progress they're making with Eva...

Tina has now completed her journey toward the Dark Side, and for her, it's probably just dealing with the consequences of that from now on (or not). Eva, I think, it about to reach her turning point, though I can see her going either way: she breaks, or she becomes unbreakable. Thinking about where the story can go from here, it seems like the former would almost make things too simple. Eva submits, Tina wins. You could throw in an external complication from Amy or Dana, but that's the end of their character arcs. But if Tina, in her current mental state, figures out that she can't break Eva, that'll keep their character development going for the rest of the story.

Amy is definitely manipulating Tina to some extent, but there's one reason against shrinking Tina. One missing person is an isolated incident. Two missing people who worked at the same place and knew each other is pattern that the police will not ignore.

The story could end right here. Tina's goal was to put a bully in her place, and that's been fully accomplished. Remmeber when people (myself included) thought that Eva would shrink Tina? How far we've come from that.

But something's going to happen to upend everything, and it's going to come from two people. Amy and Dana have been doing something that we haven't seen because we're seeing everything from Tina's perspective. Amy is manipulating Tina toward some end that it unknown to us because Tina is too childlike to realize that Amy's friendliness is a facade. Dana probably suspects Tina, and with the help of the police officer we saw earlier, is about to spring into action and take Tina down. Earlier in the story, Amy figured out that Tina used the shrinker, because Tina didn't recharge it. It's likely that Dana knows about that too. However, I doubt that Dana and Amy are working together - they have opposite goals, and so they'll probably be in conflict.

One last thing to note is that we haven't actually seen Dana work with the police. Normally, when someone does something wrong at a business, the business fixes the problem internally as much as possible, and only gets the police involved when it's unavoidable. If a company's been embezzled or defrauded, for example, the money lost to the crime is far less than the lost stock value if it became public knowledge. In this case, Dana has an interest in making sure that the public never associates kidnapping, rape and torture with her company, and the public could find out if it appears in a police report. Or maybe Dana wants to see Tina criminally charged. We'll see.

Well that was a surprise. I didn't expect to see Tina make Eva bigger. Now I'm just waiting to see what they do in the long term, and where Tina goes with the knowledge that she can do this to a bully.

The premise is excellent, and the story has been a lot of fun so far. Think hard about worldbuilding and how it affects the plot and characters. This story has a lot of potential.

Val is putting herself into a bad spot by doing this. Lawyers are forbidden to tell people to do something illegal by their bar's professional codde of conduct. Val advised Drew to commit trespassing at the very least, so she could face sanctions...unless she has a way to avoid that.

It's also notable that Casey was genuinely surprised to see a tiny man, even before she knew that it was Drew, as though it's not normal for small people to be in the house.

Finally, do you have a table or a formula that shows the height of each tax bracket or income?

COP26 is coming up, and there will be protests. It got me thinking. In this world, how tall would the government officials and NGOs be, and how tall would the protesters be, and what would happen if they met?

Drew has two options:

1) Comfort Casey and get on her good side, so that he can a) get her to share her family's secrets and b) make Casey more amenable to him exploring on his own, to gather more information, recover his phone, and prepare an escape route.

2) Run away now.

The first one has benefits, but the second one feels like the thing a person in Drew's situation would lean towards.

Who knows, if she was to inherit her parents wealth she could get even bigger... But we will see haha.

That will depend on a key detail: who actually owns the family's money?

1) We've established that, until you're 21, your size is based on your family's money*. This means that Casey could be very big with her own money or her parents' money.
2) How much money do Susan and Michael have in their own rights? Do they each have enough money to be big by themselves, or is Susan big based on Michael's money? We know from the last scene that Michael has a lot of money that Susan doesn't have access to.

So who owns the money, and who inherits should Michael's missing persons case go cold, will determine whether Casey keeps her existing size, or gains a few feet.

*This would make for a weird situation in universities for the undergraduates. You'd have a lot of people suddenly losing a lot of height in their final year. You'd also have a situation where the Master's and PhD students on $15-20k stipends, and postdocs making $30-40k, are working on research projects like science apprentices under the supervision of a professor who makes $100-150k, or more if they do consulting.