When does Sherlock draw the flipbook?
In Sherlock Holmes - A Game of Shadows Sherlock replaces Moriarty's bank book with a similar one containing a fish animation while he's being tortured with the hook.
However this is the first time the trout analogy is used (who is the fisherman who is the trout?). If this is the case when did Sherlock do the drawing? Did he expect the analogy to come up? Did he draw it while dangling from the hook? Did he switch books at a different time?
Best Answer
Earlier in the film, Holmes had been to see Moriarty at the university, where Moriarty was listening to a piece of music by Schubert titled, "The Trout," about a fisherman who muddies the water to catch a trout. At this time he also notices the horticulture book and the dead plant on the windowsill (which let him know that the book was not something Moriarty read; stealing it, he realized it contained a code).
During the hook scene, Moriarty hums his favorite fish tune from before, because he thinks he has caught a fish. In the ensuing scuffle, during which Holmes had hoped to get close enough to switch the books, he does switch them, though Moriarty doesn't discover this till later (after Holmes has sent both books to Mary and Scotland Yard to decode, and to drain the accounts).
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