Fourth Attempt — Claire Rayner

The gossip-mongers at London's Royal Eastern Hospital are working overtime. Three deaths in as many days among the staff? Worse, three suicides? Something must be very wrong. Dr George Barnabas, not one to stand for any nonsense, could have told them that the deaths were certainly not all suicides, but accidental death is so much less interesting for the rumour mill ...Yet when a fourth person nearly dies, one of George's own lab staff, not even she can calm things down. For this does not even look like an accident: it's attempted murder, and George herself, unbelievably, comes under suspicion. She has never needed much incentive to do some sleuthing; this time she has the strongest reason of all ...