File:Two Fishermen on an Aspidochelone, c. 1270 (cropped) (cropped).JPG

English: Two Fishermen on an Aspidochelone in a bestiary, about 1270, unknown illuminator, possibly made in Thérouanne, France. Tempera colors, gold leaf, and ink on parchment, 7 1/2 × 5 5/8 in. The J. Paul Getty Museum, Ms. Ludwig XV 3, fol. 89v. Digital image courtesy of the Getty’s Open Content Program

The whale is said to float at the surface of the water for some time, accumulating sand on its back until it resembles an island. This entices sailors to make their landing under the impression that they are disembarking onto solid ground. They make themselves at home and build a fire to cook with, thus angering the whale and inducing it to dive deep to cool its thick skin, which drags the sailors and their ship down into the sea.

In this story the whale is an unlikely symbol for the devil, literally dragging those under his power to hell. The whale’s superficial resemblance to a haven refers to the falsity of the temptations of the devil. Surprise, Struggle, and Scales

The whale has another behavior that links him to the devil. He is said to emit a sweet odor from his mouth that attracts other fish. They swim inside his gaping maw to investigate, and whoomp!, his mouth snaps shut behind them. The curious fish symbolize those of weak faith who embrace the sweetness of worldly pleasures, giving in to the temptations of evil.

In illuminated bestiaries the whale is generally depicted with a ship parked along the sandy expanse of its back, with sailors stoking the fire that will lead to their demise. There are often fish in the mouth of the whale, innocently investigating the source of the smell that signals their doom.

An emotional narrative—the sailors’ surprise at the whale’s deception, their struggle to retain control of their ship, the scaly enormity of the fishlike behemoth, and the placid curiosity of the fish half-concealed in the whale’s mouth—is all distilled within a single frame in the image below from a bestiary at the British Library. It conveys the epic struggle between man and beast, between the eternal soul and the wiles of the devil. The image plays a supplementary, rather than complementary, role in this manuscript, adding emotions and drama not explicitly described in the accompanying text.