There was a faint greyness of dawn now which showed him the great square of the city on which he and Lucy had looked from the prison window, a very long time ago as it seemed.

He found without difficulty the ruins of the Hall of Justice.
And among the vast blocks scattered on the ground was one that seemed of grey marble, and bore on its back in gigantic letters of gold the words _De Bello Gallico_.
Philip stole back to the prison and roused the captain.
'I want twenty picked men,' he said, 'without boots--and at once.' He got them, and he led them to the ruins of the Justice Hall.
'Now,' he said, 'raise the cover of this book; only the cover, not any of the pages.' The men set their shoulders to the marble slab that was the book's cover and heaved it up.

And as it rose on their shoulders Philip spoke softly, urgently.
'Caesar,' he said, 'Caesar!' And a voice answered from under the marble slab.
'Who calls ?' it said.

'Who calls upon Julius Caesar ?' And from the space below the slab, as it were from a marble tomb, a thin figure stepped out, clothed in toga and cloak and wearing on its head a crown of bays.
'_I_ called,' said Philip in a voice that trembled a little.

'There's no one but you who can help.