It began as a problem in one of Holmes beloved beehives led to a murderous cult & ended
- or so theyd hoped
- with a daring escape from a sacrificial altar. Instead Mary Russell & her husband Sherlock Holmes have stirred the wrath of those theyve thwarted. Now they are separated & on the run & pursued across the Continent by a ruthless enemy with powerful connections. Unstoppable together Russell & Holmes will have to survive this time apart & with Holmes young granddaughter in her safekeeping Russell will have to call on instincts she didnt know she had. From secret rooms in London to rickety planes over Scotland Russell & Holmes work their way back to each other in the most complex shocking & deeply personal case of their career.