His death, the Huguenot risings, the consequent impotence of the Guises to aid the Regent, could not be foreseen.

Scotland, it seemed, would be reduced to a French province; the religion would be overthrown.
There was thus no hope, except in aid from England.

But by the recent treaty of Cateau Cambresis (April 2, 1559), Elizabeth was bound not to help the rebels of the French Dauphin, the husband of the Queen of Scots.
Moreover, Elizabeth had no stronger passion than a hatred of rebels.

If she was to be persuaded to help the Reformers, they must produce some show of a legitimate "Authority" with whom she could treat.

This was as easy to find as it was to the Huguenots in the case of Conde.
Chatelherault and Arran, native princes, next heirs to the crown while Mary was childless, could be produced as legitimate "Authority." But to do this implied a change of "Authority," an upsetting of "Authority," which was plain rebellion in the opinion of the Genevan doctors.