Purple hellebore

Most of my hellebores are white but I have just two plants that are this rich purple. I don't know where they came from. My gardening is very ad hoc!
It could have been April today with alternating sunshine and showers. The showers were very heavy and there are large puddles everywhere.
I have been in the kitchen this afternoon making desserts for lunch tomorrow, a pear tart and little chocolate mousse cups. The mousse recipe is an old one of my mother's consisting of just chocolate, eggs and brandy. It has always been successful, but today I made it with 90% cocoa chocolate, and the mousse was quite bitter so I had to stir icing sugar into it. I hope it doesn't alter the consistency too much.