Final answer:
Fenrir is a figure from Norse mythology and is said to be released during Ragnarok, the end of the world.
Step-by-step explanation:
The question seems to be referring to a figure from Norse mythology, specifically the Prose Edda, a collection of Old Norse poems and prose. Fenrir is a giant wolf who plays a significant role in Norse mythology. According to myth, Fenrir is bound by the gods and is set to be released during the events of Ragnarok, the end of the world. The exact timing of Fenrir's release is not specified in the Prose Edda.