"Hercules," remarked Ezra musingly, "was a strong man; yet he became the slave of a woman. Solomon was a wise man--same result. My friend, you are neither Hercules nor Solomon, therefore--"
Keith departed hurriedly.
[CHAPTER X.]
NABALL MAKES A DISCOVERY.
When Kilsip undertook to educate Naball in the business of a detective, he gave him an epigrammatical piece of advice: "Cultivate curiosity." This golden rule Naball constantly followed, and found it of infinite service to him in his difficult profession. He was always on the lookout for queer cases, and when he discovered one that piqued his curiosity, he never rested until he found out all about it. The Red Indian follows the trail of his enemy by noting the most trivial signs, which to others with a less highly cultivated instinct would appear worthless. And Naball was a social Red Indian, following up the trail of a mystery by a constant attention to surrounding events. A casual observation, a fleeting expression, a scrap of paper--these were the sign-posts which led him to a satisfactory conclusion, and he never neglected any opportunity of exercising his faculties. By this constant practice he sharpened his senses in a wonderful degree, and cultivated to the highest extent the unerring instinct which he possessed in discovering crimes.
Consequently, when he found there was no legal authority to be given him in unravelling the mystery of the diamond robbery, he determined to investigate it on his own account, in order to satisfy his curiosity. To a casual spectator, it appeared to be a mere vulgar burglary, in which the thieves had got off with their plunder, and until his interview with Caprice the detective had supposed it to be so. But when he went over in his own mind the peculiar circumstances of that interview, he saw there was a complicated criminal case to be investigated, so he set himself to work to unravel the mystery, and gratify his inquiring mind.
In the first place, he drew up a statement of the case pure and simple, and then, deducing different theories from the circumstances, he tried to get a point from whence to start. He placed his ideas in the form of questions and answers, as follows:--
Q. Was Villiers outside on the verandah when Caprice mentioned where her diamonds were kept?
A. To all appearances he was.
Q. Had he any inducement to steal the diamonds?