The Great God Gold by William Le Queux

The police inquiries into the whereabouts of Gwen Griffin had been futile.

The Professor, beside himself with grief and apprehension, complained most bitterly that the authorities had not treated his daughter's disappearance with sufficient seriousness. In all the interviews he had had, both at the local police-station and at New Scotland Yard, the officials had apparently taken the view that the girl had left home of her own account. He had been told on all hands that, in the end, her escapade would be found to be due to some unknown love-affair.