A moment he stood and gazed around upon the faces of those in the room and then collapsed upon the floor.
Quickly the boys picked him up and carried him to his bed and the attending physician was summoned.
Billie picked up the box and examined it curiously.
"I wonder how he opened it?" he mused. "There must be some sort of a spring somewhere."
He felt the box all over, but could find nothing. Then he closed it and set it upon the table. A moment later Donald picked it up and tried to open it, but it was locked fast.
"Nothing but mysteries," he said. "I'm getting tired of them. But before anything else happens, I'm going around and notify Don Esteban that the box is here."
"I'll go with you," said Adrian.
"No, you'd better stay here. I'll take a mozo with me."
He ran hastily down the stairs and a minute later the boys heard the gate close behind him.
"I guess this is the quickest way," thought Donald as he gained the sidewalk. "I'll not bother with a mozo. With American soldiers on guard and my automatic in my pocket, I have nothing to fear."