“Very naturally, Mr. Ferguson. Now sit here and pull yourself together and give me a few clear answers. I can assure you that I am very far from being at my wit’s end, and that I am confident we shall find some solution. First of all, tell me what steps you have taken. Is your wife still near the children?”

“We had a dreadful scene. She is a most loving woman, Mr. Holmes. If ever a woman loved a man with all her heart and soul, she loves me. She was cut to the heart that I should have discovered this horrible, this incredible, secret. She would not even speak. She gave no answer to my reproaches, save to gaze at me with a sort of wild, despairing look in her eyes. Then she rushed to her room and locked herself in. Since then she has refused to see me. She has a maid who was with her before her marriage, Dolores by name - a friend rather than a servant. She takes her food to her.”

“Then the child is in no immediate danger?”

“Mrs. Mason, the nurse, has sworn that she will not leave it night or day. I can absolutely trust her. I am more uneasy about poor little Jack, for, as I told you in my note, he has twice been assaulted by her.”

“But never wounded?”

“No, she struck him savagely. It is the more terrible as he is a poor little inoffensive cripple.” Ferguson’s gaunt features softened as he spoke of his boy. “You would think that the dear lad’s condition would soften anyone’s heart. A fall in childhood and a twisted spine, Mr. Holmes. But the dearest, most loving heart within.”

Holmes had picked up the letter of yesterday and was reading it over. “What other inmates are there in your house, Mr. Ferguson?”

“Two servants who have not been long with us. One stable-hand, Michael, who sleeps in the house. My wife, myself, my boy Jack, baby, Dolores, and Mrs. Mason. That is all.”

“I gather that you did not know your wife well at the time of your marriage?”

“I had only known her a few weeks.”

“How long had this maid Dolores been with her?”

“Some years.”

“Then your wife’s character would really be better known by Dolores than by you?”

“Yes, you may say so.”

Holmes made a note.

“I fancy,” said he, “that I may be of more use at Lamberley than here. It is eminently a case for personal investigation. If the lady remains in her room, our presence could not annoy or inconvenience her. Of course, we would stay at the inn.”

Ferguson gave a gesture of relief.

“It is what I hoped, Mr. Holmes. There is an excellent train at two from Victoria if you could come.”

“Of course we could come. There is a lull at present. I can give you my undivided energies. Watson, of course, comes with us. But there are one or two points upon which I wish to be very sure before I start. This unhappy lady, as I understand it, has appeared to assault both the children, her own baby and your little son?”

“That is so.”

“But the assaults take different forms, do they not? She has beaten your son.”

“Once with a stick and once very savagely with her hands.”

“Did she give no explanation why she struck him?”

“None save that she hated him. Again and again she said so.”

“Well, that is not unknown among stepmothers. A posthumous jealousy, we will say. Is the lady jealous by nature?”

“Yes, she is very jealous - jealous with all the strength of her fiery tropical love.”

“But the boy - he is fifteen, I understand, and probably very developed in mind, since his body has been circumscribed in action. Did he give you no explanation of these assaults?”

“No, he declared there was no reason.”

“Were they good friends at other times?”

“No, there was never any love between them.”