What were the Hydros and what were they doing?

How did Roz discover the control room? What did she discover from inside?

Who was Akiko talking to on her computer and what made her upset?

What was the source of the poison tide?

How did Nimbus the gull feel about the poison tide? Why? What was the gull’s advice to Roz?

How was Roz discovered and what happened when she jumped into the water?

What were the humans mining? How did Roz begin to feel about why the minerals were being mined?

What did Akiko agree to do that pleased Roz? However, what was the new problem?

What happened to the Hydro robots?

Why did Brightbill and Glimmer arrive and how did Roz manage to escape the prison?

Why did the humans need to abandon the Juggernaut? What had happened to it?