Geoff's mother, Eish'lee! She's deaf, and has the "green spot."
A common occurrence in abandoned babies is the ‘green spot’. This has only ever been found in children found in the middle of nowhere after large electrical storms, whose parents cannot be tracked. It is unsure why these particular conditions are consistent, but finding a child with the green spot is said to be a blessing from the gods.
Children with the green spot usually have enhanced hearing, sight, and comprehension skills. Some are able to breathe underwater, while others have increased strength.
The green spot is the only physical indicator of these skills; it is a solid bone-like lump found on the back of the neck and easily hidden by the person’s hair if they wish it to be kept a secret.
Green spot children tend to have at least one obvious disability or deformity; deafness, missing limbs, extra fingers, etc.