Today's prompt was from sirensbane: Lost in translation. This was a tricky one to come up with something for, but once I had the idea, it was so much fun!
"I simply don't understand it, Holmes!" Lestrade paced up and down the sitting room of 221B Baker Street, pulling distractedly at the ends of his moustache. "It doesn't make sense! How could he have been killed if they were all in the room with him at the time?" He turned to Holmes, stopping his pacing long enough to look down at the detective lounging on the sofa. "Surely you must have some idea."
Holmes pointed to his throat.
"Strangulation?" Lestrade brushed the idea aside. "No, impossible! Someone surely would have noticed. You must have a better idea!"
Holmes pointed to his throat again, more vehemently than before.
Lestrade snorted at him. "Please, Holmes. I would have noticed if he'd been stabbed in the throat! I know you don't think much of Scotland Yard, but we are certainly capable of that."
Holmes closed his eyes for a long moment, long enough that Lestrade wondered if he had simply fallen asleep. He then opened them and pointed to the mug of tea that was sitting in the nearby table.
Lestrade's eyes lit up. "That's it! It must be poison! Holmes, that was just the idea I needed!" He raced down the stairs, brushing past Watson as he came in from a long day at his practice.
Watson stared after him in bemusement, then shrugged, making his way up the seventeen stairs to his own comfortable sitting room. "I'm back! Has your voice returned yet, Holmes? I know it must be very boring for you, not being able to solve cases right now, but hopefully the honey tea will get you better soon!"