The Adaptive Ultimate

http://gutenberg.net.au/ebooks06/0601...

A scientist thinks he has uncovered the secrets to the adaptative powers of the animal kingdom, via the pineal gland. Tests on guinea pigs etc., go well. Their lab can't afford an ape, so decides on a human test.
A woman dying of turberculosis disagrees. It gives her amazing abilities, but, basically she immediately turns supervillain, killing someone for money straight away, and getting off in court by completely changing her appearance.
The bewitched, bewildered and disturbed scientists eventually decide they must stop her.
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