A Chippewa maiden, an old squaw, several Frenchmen, and an Ottawa named Mahiganne have been mentioned.

It is possible that Gladwyn had it from a number of sources, but most likely from Mahiganne.

The 'Pontiac Manuscript,' probably the work of Robert Navarre, the keeper of the notarial records of the settlement, distinctly states that Mahiganne revealed the details of the plot with the request that Gladwyn should not divulge his name; for, should Pontiac learn, the informer would surely be put to death.

This would account for the fact that Gladwyn, even in his report of the affair to Amherst, gives no hint as to the person who told him.
Gladwyn at once made preparations to receive Pontiac and his chiefs.

On the night of the 6th instructions were given to the soldiers and the traders within the fort to make preparations to resist an attack, and the guards were doubled.