Make a play on him.

He will get you a temporary rank from the Viceroy.
"Your matchless knowledge of the Himalayas and the whole northern frontier will earn you a regular rank.

Coddle Anstruther, too, and cling to the Vice-roy! I'll back you with any money you need.

It's the one chance of a life!" "And what am I to do for you, Johnstone ?" quietly said the delighted Hawke.
"Just stand by me about this baronetcy, and bamboozle this damned foolish woman, while I slip quietly away to Europe! She is mercurial and vain.

Abercromby will get her into the fast Calcutta set, after one necessary appearance at the Viceroy's! She is, after all, only a woman.
You can catch them with a feather, if you can catch them at all! Once properly launched by Abercromby, you are a made man for life! He will not dare to 'go back on you!' as our Yankee cousins have it.