A Griever is a creature that lives in the Maze and comes out mainly after dark (this is not always the case, they have sometimes been known to come out in the daytime). Its purpose is to harass and even kill the Gladers who venture into the Maze.
Which story is it? That needs to be known if not it's unfindable
The right answer for the question that is being asked and shown above is that: "D. Nemo agrees to let Aronnax and his friends return to land." when Nemo sinks the English ship, <span>Nemo agrees to let Aronnax and his friends return to land.</span>