((Indeed, what have you got in your tea, if it's not too much trouble do send me some XD ))
“You are right, John, she was pushed, but not by human hands.”
“Then how?” Lestrade who had detached himself from the local constabulary had been standing close by listening. Detective Inspector Hyssop, the local investigating officer, a stocky man with grey hair came across and joined the three men.
Sherlock grinned. “I'm surprised there is any evidence left after so many feet have been walking around but look here.” he pointed to ladies shoe marks in the soft mud of the bank.
“This,” the consulting detective pointed out “was where she was standing, probably making a phone call, the shoe marks are underneath another mark. That's a mark left when she slipped. Also have a look at her dress and her right arm. The fabric is pulled and her arm has a scratch mark.”
“There,” Sherlock indicated on the soft muddy shore and bank. “Is where the culprit ran up the bank. You are looking for a dog.”
“Her dog pushed her in, where's her dog then?” Lestrade's eyes were wide and his mouth was open.
Sherlock rolled his eyes and held his breath for a moment “She doesn't have a dog, it's someone else's.”
The faces now listening to the conversation looked blank except for John who was smiling.
“You can't tell it's not her dog? No?” Sherlock paused trying not to lose his patience.
Sherlock went still in that way of his when explaining his deductions and he spoke quickly. “She wouldn't have been walking a dog in shoes with such narrow heels, not here, the bank is too steep, her clothes are not a dog walker's first choice either, she hasn't even got a coat on.
"Most dog owners carry plastic poop bags, a lead, and maybe dog treats as well. There aren't any. Her phone is missing too, so where could it have been if it wasn't in her handbag? In her hand. Someone's dog ran up to her, she slipped in the water, probably got her shoes stuck in the mud, fell, the dog scratched her arm and dress, and she dropped her phone where she fell in.” he stopped and looked at John to see if he had explained it well for him.