Mariners Bestowed with powers over tide and storm, wind and current, Mariners are Sea Fairies that serve the Masters of the Water and are sworn to protecting the creature dwelling within the sea as well as those who travel upon it. If angered by sailors, they are capable of great destruction but when appeased, they grant sailors safe passage over the sea.
Phoebe Halliwell's SpellEdit
After Phoebe Halliwell cast a spell to help her sister, Piper find out whether she belongs with Dan Gordon or Leo Wyatt, mysterious signs related to both Dan and Leo began to appear. Amongst these signs were a phone call looking for Leonara Watkins, a package from Bodega Bay and then a reference to the Seattle Mariners while Piper and Phoebe were looking in the Halliwell Family's Book of Shadows.
Although Piper thought the sign was about Dan, who once played for the Seattle Mariners, the sign was actually about how to find Prue, who was kidnapped by Bane Jessup, referring to Mariner's Bluff, where Prue was being held.
The Book of ShadowsEdit
When Piper and Phoebe were looking in the Book of Shadows, it's pages magically flipped to the Mariners entry. The entry contains an illustration of a Mariner and a full page explanation describing the Mariners, it reads thus:
These fairies are sworn to
the protection of the sea,
the creatures who dwell within it,
and those who travel upon it.
They serve the Masters of the Water
and are endowed with power
over tide and storm, wind and current.
When angered, they are capable
of great destruction, but when appeased
they guarantee the sailor safe passage home.