This story appears to be referred to in Neil Gaiman's Sandman comics: Aristeas was a poet who lived around 700 BCE, and became by transformation one of many ravens who have acted as both adviser and assistant to The Endless known as Dream.
The iatromantis, a form of Greek shaman, is related to other semimythical figures such as Abaris, Aristeas, Epimenides, and Hermotimus.
Aristeas |