A Response to a Query
In general response to a number of queries I have seen bandied about. The wording varies, but the gist remains the same: "Is there any spell I can use to turn myself into a mermaid?"
Full human transformation is impossible. There is no way that you, in the body you occupy, can simply "become" a mermaid. Mermaids don't exist, at least not anymore. The thought is laughable.
The basic idea however, is not. It is no laughing matter at all.
I have to urge, do not under any circumstances follow these instructions. These are magicks and sciences which are not to be toyed with. This guide is written for academic purposes only, for if the instructions given here were to be followed it would place a stain on a human soul such that could never be removed. It would act as a rust or a cancer, slowly devouring any semblance of true humanity left in the resultant abomination.
The "mermaid" you would become would be not human, beast or spirit, effectively immort