John finished his call and dug once more into the backpack, pulling out a folding white stick.
"Right you lads get yourselves away, stay safe" Pulling the backpack over his shoulders as he spoke, John flicked his wrist, extending and locking the stick. "We'll give them a few minutes to get clear before we move on."
When the two younger men had gone, John stood tapping his stick absent-mindedly on the floor in front of him.
Sherlock waited, impatient to be gone from the area.
Suddenly John looked up.
"You any good at grabbing taxis?" he asked. "Failing that we have to travel by tube."
"No money." Sherlock pulled his pockets inside out as if to illustrate, then remembered his companion wouldn't see it.
"Leave that to me, come on." Securing the building John walked slowly along the pavement, tapping his stick.
"Here." Sherlock grasped the smaller man's arm, halting him, then stepped to the curb and held up his hand.
As the cab pulled up beside them, John hissed "Say nothing" then climbed in, giving the cabbie the address as his companion climbed in behind him.
Arriving in Baker Street, John paid the fare, and was about to open the front door when two figures peeled themselves away from the shadows, and grabbed him, slamming him back against the brickwork.
