The Serpent is an allied creature with a will of its own, which protects and cares for whoever it accompanies, fights, and can use weapons and magic items. It has been killed and resurrected at least four times. It is described as an entity of infinite forms, both dragon and serpent, made of bronze.
| Type | Entity |
| Spanish entry | La Serpiente |
Role at the end of time
It is also placed in the end of days as an entity active in the apocalypse, with an unclarified relation to the angels and the cosmos.
Other accounts
- An older record names it as the agent that granted wisdom, fleeing the vigilance of the previous order.
- Another says it can obtain knowledge through union.
- A third notes that its sentence is harsh and that it is associated with a magic ring.