This, then, was the key to the mystery. The Haygarthian inheritance was but a remote contingency, a shadowy prize, which could scarcely have tempted the secret assassin; but the insurance had offered the prospect of immediate gain. The one link wanting to complete the chain of evidence against Philip Sheldon was found. There was no longer a question as to his motive. "This man knows of one insurance on her life," Valentine thought to himself; "there may have been more than one." After a brief silence, in which Mr. Hawkehurst had been lost in thought, the lawyer proceeded to discuss the terms of the post-nuptial settlement necessary for the protection of his client's interests. In the course of this discussion Valentine explained his position in relation to George Sheldon, and stated the demands of that sharp practitioner. Mr. Greenwood was utterly aghast upon hearing Mr. Hawkehurst's views on this subject. "You mean to tell me that this man claims a clear half of the Haygarth estate--fifty thousand pounds--in consideration of his paltry discoveries!" "Such is the demand he has made, and which I have pledged myself not to oppose. He certainly does open his mouth very wide; but we are bound to consider that but for these discoveries of his, my wife and my wife's relatives would in all probability have gone down to their graves in ignorance of their claim to this estate." "I beg your pardon, Mr. Hawkehurst. If Mr. George Sheldon had not made the discovery, some one else would have made it sooner or later, depend upon it. There would have been a little loss of time, that is all. There are plenty of men of George Sheldon's class always on the look-out for such chances as this--and for very small chances in comparison to this. Why, I know a fellow, a Frenchman, called Fleurus, who will take as much trouble about a few hundred pounds' worth of unclaimed stock as this man, George Sheldon, has taken about the Haygarth succession. And he has really the impudence to claim fifty thousand pounds from you?" "A claim which I have pledged myself not to oppose." "But which you have not pledged yourself to support. My dear Mr. Hawkehurst, this is a business which you must allow me to settle for you, as your wife's legal adviser. We will consider you quite out of the question, if you please; you will thus come out of your relations to Mr. George Sheldon with perfectly clean hands. You will not oppose his claim; but I shall oppose him in my character of legal adviser to your wife. Why, are you aware that this man executed an agreement with his brother, consenting to receive a fifth share of the estate, and costs out of pocket, in complete acquittance of all claims? I have an abstract of the agreement, amongst Miss Halliday's--Mrs. Hawkehurst's papers." After some further discussion, Valentine agreed to leave the whole matter in Mr. Greenwood's hands. Greek must meet Greek. Gray's Inn and the Fields must settle this business between themselves.