This paper presents the Singularity Cipher, a novel cryptographic-steganographic framework that integrates topological transformations and visual paradoxes to achieve multidimensional security. Inspired by the non-orientable properties of the Klein bottle -- constructed from two Mobius strips -- the cipher applies symbolic twist functions to simulate topological traversal, producing high confusion and diffusion in the ciphertext. The resulting binary data is then encoded using perceptual illusions, such as the missing square paradox, to visually obscure the presence of encrypted content. Unlike conventional ciphers that rely solely on algebraic complexity, the Singularity Cipher introduces a dual-layer approach: symbolic encryption rooted in topology and visual steganography designed for human cognitive ambiguity. This combination enhances both cryptographic strength and detection resistance, making it well-suited for secure communication, watermarking, and plausible deniability in adversarial environments. The paper formalizes the architecture, provides encryption and decryption algorithms, evaluates security properties, and compares the method against classical, post-quantum, and steganographic approaches. Potential applications and future research directions are also discussed.