Murder at birding institute. Head scientist (beautiful woman). Was it her cuckolded husband? A jilted grad student? Subplot: two boys on the island are gay--upsetting family of one. Solution: another scientist, years earlier, had worked with the beauty. an affair, pregnancy, birth--but dad not told. He marries, has child, child dies. The couple come to work on the island. Wife sees the son of the beauty-scientist. Boy looks just like her dead boy. She figures it out, confronts woman, "accidentally" kills her. Cleeve tells a good story, but this recurring "unlikely female murderer" technique is wearing thin