Well, he should meet with a ready purchaser, if a letter from Brett to every agency in London would expedite matters.
He did not credit Jiro with the death of Sir Alan Hume-Frazer, nor even with complicity in the crime.

The Japanese had acted as the unwitting tool of a stronger personality, and the little man's brain was even at this moment considering fresh aspects of the affair not previously within his ken.
Moreover, how maddening the whole thing was! Beginning with Hume's fantastic dream, he reviewed the hitherto unknown elements in the case--Capella's fierce passion and queer behaviour, culminating in a sudden journey to Italy, Margaret's silent agony, the existence of an Argentine cousin, the evidence of "Rabbit Jack," the punning motto on the Ko-Katana, Jiro's perturbation and desire to prevent his wife's unconscious disclosures.
With the final item came the ludicrous remembrance of that ill-assorted couple.

Laughing, Brett hailed a hansom..