Status Updates From Icebreaker (The Hidden #1)

"You need a backup system. Gotta have backup. And if it's not there for start with, you gotta build it. Just in case" (68).

Petrel is not a part of any three tribes on the ship and only trusts two large rats. Later, she finds a stranger on an iceberg, and the tribes do not trust him. He pretended to have forgotten everything, even his name, then Petrel named him and became a friend

human vs. human
the boy from an iceberg is arguing with Petrel in the prison. If he told her his name, she would have taken him out of the cell but he didn't tell it. Petrel ended up not taking him out of the cell. (58-59)