From PowerOfPens: The Irregulars help Holmes through some trouble
Wiggins dashed down the seventeen stairs as fast as his legs could carry him, pausing only to allow Mrs. Hudson to pass in safety. He bolted out into the street, and found the next nearest Irregular.
"Oi, Tom! Get a chain goin' for the Doctor!"
Tom left Wiggins where he was standing and moved quick as he could down Baker Street. He side-stepped pedestrians and cabs alike before he spotted his target.
"Al! We're sending for Doctor Watson! Emergency!"
One by one they completed their link in the chain. Each one passed the message; quick was the word and sharp was the action. Eventually, it fell to Finn the Fin from the fish market to make the final leg.
"Doctor Watson!" He burst into the room, lungs at full power. "It's an emergency!"
The doctor in question was luckily only finishing up a report and not in the middle of an appointment. He leapt up from his chair at once.
"Where?"
"The home base sir!"
"Right." Watson grabbed his bag and put on his coat. "If you'll send the word back, lad-" But the Fin was already darting through the sea of foot traffic. He passed the message onto Jimmy the shoeshine, who ran it back to Mac, who ran it back to Billy and Carver, and Carver went to Richie who went to Al who went to Tom who went to Wiggins. The unofficial head of the Irregulars ran it back upstairs.
Mrs. Hudson was stationed outside the washroom door. "He'll not let me in, young man." She lowered her voice. "He's more ill than we thought."
Wiggins approached the door. "Mister Holmes? We've got Doctor Watson on his way. Be here any minute, he will!"
There was a weak chuckle from behind the door. "I suppose I have no say in the matter of word has already been delivered down the grapevine. Very well."
Wiggins and Mrs. Hudson waited. After a long pause, Holmes spoke again.
"If the grapevine can take another message, pass along my thanks."
The young man's face broke into a grin. "Will do, sir!"
A/N: short today as im sick as Holmes