master compass

He was also in charge of navigation, carrying the master compass on his sledge.

He must have thought he was offering us a revelation when he said "master compass" or "repeater compass."

It is the machinations of Master Compass, who exposes Mistress Polish's plot and effectively wins the day in the final reveal and his supremacy of the situation.

The very fact that Lady Loadstone is guided constantly by the advice of Master Compass, who is described by Parson Palate as 'the perfect instrument your Lady should sail by' indicates her dependence upon her male friend's guidance, as a widow in a male dominated society.