Daisy Weal and the Last Crenian

The fourth book in the Daisy Weal Series
Daisy Weal was gifted with extraordinary powers. Her early years were spent learning how to control them, learning how to fit in and learning how to be human.
Daisy had just celebrated her sixteenth birthday when the Crenian came to earth.
His race had been wiped out by a genetic shift that had been introduced centuries ago, and instinctively his first act was to attack Daisy, before he realised that her powers were at least equal to his own.
Eventually ...