As these despatches were too bulky to be concealed in the clothes of a single messenger, it was necessary to employ two confidential persons.

Fuller was one.

The other was a zealous young Jacobite called Crone.

Before they set out, they received full instructions from the Queen herself.
Not a scrap of paper was to be detected about them by an ordinary search: but their buttons contained letters written in invisible ink.
The pair proceeded to Calais.

The governor of that town furnished them with a boat, which, under cover of the night, set them on the low marshy coast of Kent, near the lighthouse of Dungeness.