orders, the delicate and expensive Number 475-S appeared thrice. One box had been sold to a watchmaker by appointment to the Queen, and two boxes each to two individuals: A Mr. Thomas Edison, with an address in New York, America, and a certain Mr. Peter Cantrip.
Breathless with excitement, Tacy wrote down Cantripâs direction. She was making a note of the other addresses when she heard the clerkâs voice asking her what she was doing.
Thrusting her notebook in her muff, Tacy stiffened her back and assumed what she hoped was a forbidding expression.
âWell, brother,â she said. âAre you finished at last? I feel one of my spasms coming on.â
Dr. Watsonâs face was the picture of brotherly alarm. âTo be sure, my dear.â Then, man-to-man: âYou understand, Mr. Clovelly, I am sure.â
Mr. Clovellyâs whiskers trembled slightly. âYes. I mean to say, what are you doing at my desk, miss?â
Tacy gave an awful groan. The doctor hurried over and took her arm. âShe is of a hysterical bent,â he confided to Mr. Clovelly. âRestless, you know. I had better get her home. Thank you for your advice. It was most helpful.â
And he strode from the shop, Tacy clinging to his arm, struggling to stifle her mirth until Steyne & Sons was safely out of sight and sound. âPoor Mr. Clovelly!â she exclaimed as they rounded the corner. âI thought he was going to have a spasm on his own account!â
The doctor smiled. âIndeed. I am much obliged to you, maâam. Mr. Clovelly has given me a thorough grounding in the science of gears and bearings and drive trains, could I only remember it all. Were you able to procure the information you needed?â
âI think so,â Tacy said. âThere were three recent orders for the 475-S, but the only one that signified was Mr. Peter Cantrip. Odd it is how his name is constantly turning up, like a worm after rain.â
âOdd, indeed. Where does this Cantrip live?â
âIn Spitalfields,â Tacy said. âWhat sort of district is Spitalfields?â
Dr. Watson frowned. âNot nearly so respectable as Shoreditch. Ladies do not commonly venture there.â
âA blacksmithâs daughter, I am.â Tacy gave him a sober look. âHave you such a thing as a revolver about you?â
Dr. Watson looked startled. âMy service revolver is at my lodgings.â
âWe will call at your lodgings on the way, then.â
*Â Â Â *Â Â Â *
Where Shoreditch smelled primarily of smoke and stone, Spitalfields smelled of humanity: poor, cramped, and unhappy. As Tacy and Dr. Watsonâs hansom churred over the cobbles, rats scampered from its path and hollow-cheeked, ragged men and women stared at it with avid, measuring eyes. At length, the cab turned to enter a barren court, stopping in front of what looked to have been a school, set back behind an iron fence. Its windows were clumsily boarded and its bricks were streaked with moss.
Tacy tapped the hansomâs speaking tube. âWill you wait for us?â
âNot in Spitalfields,â the mechanical coachman replied.
âCome, come, Miss Gof,â said Watson cheerfully. âIf you can contemplate with equanimity bearding a mad scientist in his den, the streets of Spitalfields need not alarm you.â
âI am not alarmed,â said Tacy, with dignity. âJust wondering I was, how we are to get Sir Arthur away, once weâve rescued him.â
âOne problem at a time, Miss Gof,â he said. âBefore we get away, we must get in.â
The iron fence was provided with a stout gate, secured by a bright new chain and lock. Dr. Watson examined it with a businesslike air. âIt seems the mysterious Mr. Cantrip does not encourage casual visitors. Have you such a thing as a hairpin about you, Miss Gof?â
âFull of surprises, you are,â she said, and drew one out of her coiled