Marina, or Aguamarina, is a chaotic, weary water genie whom the Deep Ones meet on their Atlantic crossing.
| Type | Character (genie) |
| World | Antiterra |
| Era | 1888, the high seas |
| Chronicle | profundos |
| Spanish entry | Aguamarina |
The pact
She agrees to guide them in exchange for an unusual payment: that they dedicate to her the deaths they cause. With her favor, a wish granted to Ludovico, they sink La Londra in a Moby Dick-style end and rescue Antonia from the sea bottom.
Betrayal
The pact does not last. The group betrays her: Matt “judges” her as a sea monster, and she flees. She is the first of the amoral allies the gesta (campaign-cycle) uses and discards, an elemental power that does not tell good from evil, only the tedium of eternity.