Two years of teaching biology had been enough.

Two years of dissecting frogs and reeking of formaldehyde had finally persuaded Cassie Swann to set up as a bridge professional instead.

So far , she had managed to make a reasonable living, operating from her Cotswold cottage.

And then during a winter Bridge weekend at a country house hotel , she finds three of her punters dead around the green baize table.

At least one of them  is indisputably the victim of murder.

Nothing to do with Cassie - or is it.

When she realises that her livelihood is now threatened by the unwanted notoriety, she is forced to undertake some investigations of her own.