"You have eaten nothing today, then, I am to understand?" asked Craig when Seabury had finished with his minute and puzzling account of his troubles.
"Not even breakfast this morning," he replied. "Mrs. Seabury urged me to eat, but—I—I couldn't."
"Good!" exclaimed Kennedy, much to our surprise. "That will make it just so much easier to use a test I have in mind to determine whether there is anything in your suspicions."
He had risen and gone over to a cabinet.
"Would you mind baring your arm a moment?" he asked Seabury.
With a sharp little instrument, carefully sterilized, Craig pricked a vein in the man's arm. Slowly a few drops of darkened venous blood welled out. A moment later Kennedy caught them in a sterile test tube and sealed the tube.
Before our second visitor could start again in retailing his suspicions which now seemed definitely, in his own mind at least, directed in some way against Mrs. Seabury, Kennedy skillfully closed the interview.
"I feel sure that the test I shall make will tell me positively, soon, whether your fears are well grounded or not, Mr. Seabury," he concluded briefly, as he accompanied the man out into the hall to shake hands farewell with him at the elevator door. "I'll let you know as soon as anything develops, but until we have something tangible there is no use wasting our energies."