DOLPHIN
42
Calculated
English DOLPHIN. Pythagorean reduction 42. In Adams, second most intelligent. They left.

PhotoKen LundCC BY-SA 2.0
DOLPHIN reduces to 42. In the Guide, dolphins were the second most intelligent species on Earth. They knew. They left. Typical.
What it supports
Exact English reduction of DOLPHIN: 4+6+3+7+8+9+5 = 42. Neighbor of FISH (24 | 42). CIPHER owns the face. Adams owns the joke. They did not hire each other.
What it does not
Not proof Adams encoded the word. Not a marine census.
Calculation
D4+O6+L3+P7+H8+I9+N5 = 42
English full reduction (Pythagorean)
ExactnessCipher result
Form42
Unitcipher
Strengthreproducible