Consuela Cruz is a friend to the Redfort's. They first met when Sabina hired Consuela as a dietary expert. In Look into my eyes, it is mentioned that she comes from Seville, Spain.
In Blink and you Die, It is revealed that she is working with the conservationist Amarjargel Odiov to study the diet of the yellow snakes.
Due to "creative differences" she doesn't get along very well with the Redfort's housekeeper Mrs Digby.