Then the previous evening came back to her, and John’s revelation. His confusion had touched her, and she’d wanted to comfort him, but had held back, afraid that he would misinterpret her sympathy. She took a deep breath and sat up, wanting to be outside, running through the cool streets with the birds singing their little lungs out.She slid out of bed and pulled on her running gear. Not too far, she thought, just down Beacon to the Common.As she ran she replayed their conversation of the previous night, and then her thoughts turned to that other possible revelation, about Maisy and Gennady. It was such a tantalising thought, which would explain so well why Nancy would have wanted to make contact with Mikhail, her half-brother. Perhaps too tantalising, but easy enough to check, she thought. The path lab would have both their DNA. And if it were true, what did that mean? Why did they have to die?She swerved around a couple of joggers coming in the other direction, and circled the Brewer Fountain to begin the run back.Peter caught her in the entrance hall.