From Madam'zelleGiry - Holmes, Watson, Mycroft, and Mrs. Hudson are snowed into 221B for the foreseeable future.
Holmes peered out of the window, and tutted. "I think our outing will not be happening after all, Watson. The snow is falling so quickly, we shall have a foot within two hours. I suppose we shall simply have to-"
"Mr. Holmes," Mrs. Hudson called from the landing. "Your brother has just arrived. I'll bring some tea up."
"Mycroft?" Holmes frowned. "What the deuce?"
"I hope no more precious state documents have been nabbed in this weather," Watson said as Mycroft's large frame glided through the door.
"Hello, brother mine," he said as warmly as Mycroft ever did. "Hello, Doctor Watson."
"Lovely evening for a visit," Holmes said wryly. "What brings you to us?"
"Poor timing," Mycroft said. "My cabbie refused to bear me home in such weather, and yours was the closest place of refuge I could think of."
"We're happy to have you," Watson said, with a chiding glance at Sherlock. "Please, sit."
Mrs. Hudson bustled in with a tea tray, setting it on the sidebar.
"Why don't you sit with us a while, Mrs. Hudson?" Watson asked. "You deserve a rest."
"Ah, thank you, dear," she beamed, sitting in their chair usually reserved for clients. "It's been a long day, and the cold sets my hip aching."
"Well," Holmes said, "What shall we occupy ourselves with for the foreseeable future?"
At first, it was just Holmes and Watson playing poker. Holmes was better at deducing tells, but Watson's long days in the army had made him very skilled at the game.
Then Mrs. Hudson asked to join. Her lodgers shrugged, dealing her in.
"Sherlock," Mycroft tried to warn. 'I wouldn't-"
"Now, Mycroft, let Mrs. Hudson enjoy herself," Sherlock said dismissively.
Only a few hands later, Martha Hudson had crushed them both, leaving her tenants in a state of perplexed shock.
"I tried to warn you, Sherlock," Mycroft smirked. "Her body language told me she knew she would win. You should be wary of seeming innocence."
"Elder Mr. Holmes, do you think I could beat you?" Mrs. Hudson smiled.
Mycroft narrowed his eyes. "Bring it on, my dear woman."
When the snow thawed, Mrs. Hudson had quite a bit of pocket change to spend.
