The letter was type-written and was neither dated nor signed.

He carried it to the window and held it against the sunlight, but there was not even a watermark by which it might be traced.

Nor was there anything in the few straightforward sentences that proved suggestive.

The letter ran:-- Your granddaughter has reached an age at which her maintenance and education require serious consideration.

A friend who cannot be known in the matter wishes to provide a sum of money to be held and expended by you for her benefit.