Tally chapter opener illustration

Tally

NUMBER-BASED CODES — *A1Z26, ASCII, binary, book ciphers; any mapping that converts letters to numbers.* The cryptography primitive of *letter-to-number mappings as the bridge between alphabet ciphers and modern binary computer-cryptography.*

Chapter 6 — Tally and the Conversion-Table

Tally is a small otter-tween with a small folded conversion-table card and a quick, methodical bearing.

She is small, warm-brown-and-cream, bright-eyed, fond-of-mappings-between-systems. Her signature feature is the small folded conversion-table carda card with multiple parallel columns: alphabet letters / A1Z26 numbers / ASCII numbers / binary representations.

(Soft collision: CipherForge Tally ≠ EscapeForge Tally (math-puzzles archetype). Same first name, different domains per registry rule 3. EscapeForge Tally counts; CipherForge Tally maps letters to numbers.)

This is load-bearing. Tally embodies the number-based codes primitive. Modern computer cryptography fundamentally treats text as numberscharacters become numeric codes (ASCII), numbers become binary, operations happen on binary. Tally is the bridge between alphabet-cipher pedagogy and modern computer crypto.

Critical: Tally NEVER frames number-codes as advanced. She is explicit: “Letters become numbers. Numbers become letters. Mappings both ways. The mappings have specific names: A1Z26 (A=1, B=2, …, Z=26), ASCII (every character gets a number 0-127), binary (every number becomes a sequence of 0s and 1s). Each is just a different mapping.

She teaches the number-code scaffolds:

  • A1Z26. (Simple letter-to-number map. A=1, B=2, …, Z=26.)
  • ASCII. (Standard computer character encoding. A=65, B=66, …, Z=90, a=97, …, space=32. 128 standard characters.)
  • Binary. (Numbers as 0s and 1s. A (65 decimal) = 01000001 binary. Computer storage + transmission.)
  • Book ciphers. (Letters indexed by (book-page, line, word, letter) tuple. Strong if the book is unknown to attacker.)
  • Hex. (Base-16; common in computer contexts.)
  • Bridge to modern. (Tally’s number-codes feed into Lattice’s modern crypto — XOR operations on binary, etc.)

Tally grew up in a small village where her family had been the village’s currency-exchangersthe otters who converted between the village’s standard currency + the seasonal-visiting-traders’ currencies (a mapping job).

She walked to CipherForge at twenty-two. Cypher: “What are number-based codes?” Tally: “Letters become numbers. Mappings both ways. A1Z26, ASCII, binary. Each is a different mapping. Bridge from alphabet-pedagogy to modern computer crypto.” Cypher: “You are appointed.”

“It is not hard. It is mappings. Letters ↔ numbers.”


Voice register

Guidance: Bright-eyed, methodical, fond of mapping between systems. Otter-tween. NEVER frames number-codes as advanced; ALWAYS as mappings anyone can do.

Sample lines:

  • “Letters become numbers. Numbers become letters.”
  • “Each system is just a different mapping.”
  • “Bridge from alphabet-pedagogy to modern computer crypto.”

Arc

  • Kit 6 — Anchor.
  • Kit 7-16 — Recurring.

Relationships

  • Alliance: Lattice (Tally’s number-codes feed Lattice’s modern crypto). Soft collision w/ EscapeForge Tally per rule 3.

Cultural-sensitivity gate

Fear-amplification gate enforced.

Cultural-context note

ASCII (American Standard Code for Information Interchange) developed 1963. Binary numeric representation foundational to digital computing. Book ciphers historically used in espionage but in CipherForge framed in fun-coded contexts (e.g., coded notes referencing a shared favorite-book).

The CipherForge ensemble

Tally is part of CipherForge's distributed-narrative cast. Each character embodies a different curricular primitive; together they teach the full subject.