His steady tone seemed to have some compelling influence on the confused mind of the half-witted creature, who answered readily and at once—

"Of whom should I speak but Thelma? Thelma, the beautiful rose of the northern forest—Thelma—"

He broke off abruptly with a long shuddering sigh, and rocking himself drearily to and fro, gazed wistfully out to the sea. Errington hazarded a guess as to the purpose of that coffin hidden in the shell cavern.

"Do you mean Thelma living? . . . or Thelma dead?"

"Both," answered Sigurd promptly. "They are one and the same,—you cannot part them. Mother and child,—rose and rosebud! One walks the earth with the step of a queen, the other floats in the air like a silvery cloud; but I see them join and embrace and melt into each other's arms till they unite in one form, fairer than the beauty of angels! And you—you know this as well as I do—you have seen Thelma, you have kissed the cup of friendship with her; but remember!—not with me—not with me!"

He started from his seat, and, running close up to Errington, laid one meagre hand on his chest.

"How strong you are, how broad and brave," he exclaimed with a sort of childish admiration. "And can you not be generous too?"

Errington looked down upon him compassionately. He had learned enough from his incoherent talk to clear up what had seemed a mystery. The scandalous reports concerning Olaf Güldmar were incorrect,—he had evidently laid the remains of his wife in the shell-cavern, for some reason connected with his religious belief, and Thelma's visits to the sacred spot were now easy of comprehension. No doubt it was she who placed fresh flowers there every day, and kept the little lamp burning before the crucifix as a sign of the faith her departed mother had professed, and which she herself followed. But who was Sigurd, and what was he to the Güldmars? Thinking this, he replied to the dwarf's question by a counter-inquiry.

"How shall I be generous, Sigurd? Tell me! What can I do to please you?"

Sigurd's wild blue eyes sparkled with pleasure.