A Griever is a creature that lives in the Maze and comes out after dark. Its purpose is to harass and even kill the Gladers who venture into the Maze.
Griever Sting

Griever sting on Ben

It is described as being a bulbous, dark creature, with many appendages such as spikes, shears, and rods. It seems to move in a forward roll. A Griever can "sting" Gladers, or prick them, which causes extreme pain for up to days or weeks. Stung Gladers who take the Grief Serum usually regain some of their memories during the painful "Changing." If a Glader does not take the serum, they die.

Grievers make whirring and clicking sounds when they move. The machinery inside of them often causes the reflectance of light, as described by Thomas. Grievers have stung four major characters in The Maze Runner: Gally, Alby, Ben, and Thomas

Grievers appear to be easily tricked, as seen when Thomas and Minho tricked the Grievers into going over the Cliff. It is unknown if the Grievers actually intended to go into the Griever Hole. They are assumed to "charge" in oblong cell-like cages seen in WICKED headquarters and at the end of The Scorch Trials.

In The Fever Code, Doctor Paige says that Grievers have a mutated version of The Flare that can be healed with the Grief Serum.

Known Victims