More Sherlock and Elementary crossovers. Continuing the gag of House spiking the Sherlocks' food and beverages. But, hey, if you are going to hallucinate, you can't go wrong with Basil, from The Great Mouse Detective and Wishbone as Sherlock Holmes. (That dog does look fetching in a deerstalker. Yes, bad pun. Couldn't resist.)
And, yes, Basil is referencing an actual ACD Sherlock Holmes story. A gold star if you know which one it is.
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