10:40
`` Well , but granting that complicity , we may attribute the crime to the natives who haunt the Murray . Without him the blacks could never have opened a swing-bridge ; they know nothing of its mechanism . '' `` Exactly so , '' said the police-inspector . `` Well , '' added Mr. Mitchell , `` we have the evidence of a boatman whose boat passed Camden Bridge at 10:40 P. M. , that the bridge was properly shut after he passed . '' `` True . '' `` Well , after that I can not see any doubt as to the complicity of the guard . '' The police-officer shook his head gently , but continuously .