Next, from the shadows by the window, a somewhat shrill purring announced the restoration of the cat to its normal state. Smoke was advancing across the carpet. He seemed very pleased with himself, and smiled with an expression of supreme innocence. He was no shadow-cat, but real and full of his usual and perfect self-possession. He marched along, picking his way delicately, but with a stately dignity that suggested his ancestry with the majesty of Egypt. His eyes no longer glared; they shone steadily before him; they radiated, not excitement, but knowledge. Clearly he was anxious to make amends for the mischief to which he had unwittingly lent himself owing to his subtle and electric constitution.
Still uttering his sharp high purrings he marched up to his master and rubbed vigorously against his legs. Then he stood on his hind feet and pawed his knees and stared beseechingly up into his face. He turned his head towards the corner where the collie still lay, thumping his tail feebly and pathetically.
John Silence understood. He bent down and stroked the creature's living fur, noting the line of bright blue sparks that followed the motion of his hand down its back. And then they advanced together towards the corner where the dog was.
Smoke went first and put his nose gently against his friend's muzzle, purring while he rubbed, and uttering little soft sounds of affection in his throat. The doctor lit the candle and brought it over. He saw the collie lying on its side against the wall; it was utterly exhausted, and foam still hung about its jaws. Its tail and
