A rearing fiery horse with a golden mane, framed by a coiling golden serpent, on a dark background with subtle mathematical diagrams.

A premium literary thriller book cover, portrait orientation (6×9), minimalist and elegant. Background is deep charcoal black with an almost imperceptible fine linen texture. The atmosphere is mysterious, intelligent, timeless, and prestigious rather than fantasy or science fiction. In the centre, a serpent is painted with exquisite metallic gold brushstrokes. The snake coils in a graceful logarithmic spiral, symbolising precision, mathematics and hidden knowledge. Its scales are implied by delicate gold textures rather than individually drawn. Its head is calm, mouth closed, eyes almost invisible, conveying wisdom rather than aggression. Within the negative space formed by the serpent's spiral, a magnificent rearing horse gradually emerges. The horse is not solid—it is entirely composed of flowing fire rendered in traditional Chinese ink-painting style. Flames begin as deep crimson and burnt orange near the hooves, becoming brilliant amber and soft gold near the mane. The mane consists of elegant ribbons of flame sweeping upwards. The horse appears to be rising from darkness, almost invisible at first glance, rewarding a closer look. Hidden within the gold brushwork of the serpent are subtle suggestions of advanced mathematics: faint geometric constructions, elegant circles, tensor-like symbols, abstract equations, and delicate scientific diagrams woven naturally into the artwork. These should never be readable, only hinted at, as though concealed secrets. The flames Mehr sehen