So wandering on--dreaming on, he fancies she is his lost good, which was dropped out of life long ago; that she personates the faith, the hope, the innocence of his early years, ere sin set the searing mark of death upon his heart, and bitter wrongs stole from him his primal purity, and fused in the alembic of his burning hatred, all noble tendencies into bitter infidelity. And wandering on--dreaming on, day by day, drifting on from riotous fancy to feeble reason, he comes to know that there is a puzzle in the kindness of this woman, who morning, noon, and night cares for him as woman never cared for him before; and, grasping the puzzle at last, he looks at it with comprehending eyes. He will ask this tender, holy-faced watcher by his bedside why this heavenly care for him. Perchance she is repaying some former service of his, done in the days of health; for St. Udo Brand has done his deeds of generous kindness to the widows and orphans of his brave Vermont boys, and forgotten the acts by scores. "Lady, why have you been so kind to me?" "Not kind--only just." "The service which you thus repay must have been a great one. You have risked your life nursing me through this infectious plague; what have I ever done to you that could merit such repayment?" She has been fearing these questions for some days, and she has been clinging all the more fondly and passionately to the sweet dream which she has never once in all her passion of unselfish devotion dreamed could last. Again and again she has put aside the cruel end; for, oh! she cannot give him up yet--her king! By the couch of deadly peril and pain, when his manhood is low beneath the scowl of death--when the divinity of his intellect is swallowed up in frenzy--in his weakness and despondency--the most royal days of Margaret's life have come to her, gold-tinged, and crowned with joy--the days of her love. "You are not strong enough for this," she answers, wistfully. "Wait until you are a great deal stronger before you ask questions." "But"--a bewildered line is knotting the sick man's brow like the faint ripple on the glassy waters of a stream--"I have seen you before in such different circumstances, and I would like to know where." "I am Perdita, you know," with an anxious smile. "You met me in your delirium often enough, don't you remember?" "Yes, yes--was that it? When did you find me?" "Three weeks ago. You were in the first stages of yellow fever. You would have died if God had not providentially sent me here in time." "So strange that you should risk your life for me--a tender lady." "It was a pleasure to me, sir. I was not afraid of the risk."