Having entered all the notes to his satisfaction, he thoroughly inspected both rooms and made more notes. Then he went outside and bawled up the stairs—

"Wilkins!"

"Sir," came the answer from the bucolic constable on duty above.

"Just step round to the 'Compasses,'" instructed his superior from the foot of the stairs, "and tell my brother I should be glad if he'd come round here for a few minutes. We've got a rather curious case."

"Very good, sir," came the reply, followed by the heavy tread of the man's boots as he went to carry out the orders.

"My brother's down 'ere on a bit of a 'oliday, sir," explained the inspector to the doctor, entirely ignoring me, "and being one of the tip-top detectives up in London, I thought we'd take the benefit of his opinion."

The "Compasses," as it turned out, being only a couple of streets off, we had not long to wait for the coming of the detective luminary from London. His heavy footsteps were soon heard on the stairs; preceded by the constable, he descended the flight with evident forethought and consideration. Emerging from the darkness into the light of the wax candles, he presented the appearance of a prosperous butcher, tall, broad-shouldered, red-necked, and with moustache and whiskers of a sandy hue. His face was very red, and the skin shining as if distended with good living.

"This is my brother, Inspector Bull of the Z Metropolitan Division," explained our inspector to the doctor, once more ignoring me, "down 'ere on a little 'oliday."

As I learned afterwards, this gentleman was one of the Guardian Angels who watched over the safety of the inhabitants of the Mile End Road.

The doctor having shaken hands with him, his brother put another question to him.