At the end of the series, Tash is revealed as the antithesis of Aslan (who represents Jesus), and appears as a terrible demon, with a skeletal, humanoid body, a vulture-like head, and four taloned arms.

Near the end of the novel, the principal antagonist Rabadash, frustrated and maddened by defeat, tries to call on Tash to inflict vengeance on the Narnians and Aslan—such as "lightning in the shape of scorpions".

[1] The worship of Tash persists in The Last Battle, the final book of the series, in which he is depicted as a very real and malevolent being who is the antithesis of Aslan.

Tash appears much larger than a man, with four arms and the head of a vulture; his presence brings cold and the stench of death.

It had four arms which it held high above its head, stretching them out Northward as if it wanted to snatch all Narnia in its grip; and its fingers - all twenty of them - were curved like its beak and had long, pointed bird-like claws instead of nails."

"[5] However other commentators view the introduction of Tash in The Last Battle as a type of deus ex machina, "swooping in from left-field" to threaten Narnia.

[6] Imran Ahmad writing in the Huffington Post describes how the presentation of Tash in The Last Battle intersects with how some Evangelical Christians view Islam.

"[7] Paul Simpson in his guide to Lewis's writings notes that "the discussion whether Tash and Aslan are the same is one of the underlying themes of the book.

For example, Sameer Rahim writing for The Telegraph describes Tash as "a bizarre concoction of a Babylonian devil and Hindu god.