The sailors were not to begin their work until the attack on the town commenced in earnest.

Jean, with his twelve tenants, was to come up at twelve.

The exact moment for the attack was to be decided upon by the progress made by the fires.

When these had had their effect, Leigh was to fall upon the guard round the prison; and Jean, with his band, to run forward to the gate, plant the powder barrels against it, light the fuse and run back.
As soon as they had killed or driven away the guard, Leigh's party were to return to the front.

There Andre, with half the band, were to station themselves, and to hold the gate against any armed body that might arrive; while Leigh, with the others, entered the prison and aided, if necessary, to overpower the warders and blow open the doors of the cells.