wily

The first and last weakness of his life, before him again. For a moment he felt himself blinded by his own memories; his own remembrances of the wits and wiles of Marian Halcombe that would steal into his thoughts; the sound of her laughter at his outrageous tales, the shadowed glance of distrust, the way her eyebrows would raise ever so slightly despite her resolution to seem disinterested in his foreign insights. She was the first woman he ventured to have complete equality in matching his tremendous cleverness.

He fell in love with her house and land,He fell in love with her pension plan,He worked his way to her lonely heart,He was quite wily from the very start.