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.but it's needed to make the clue into a sentence.
No it isn't! You don't hear sergeants major crying out "Present the arms!"
This isn't misdirection. It's lies. Damned lies! The misdirection is already there in the use of 'book' as a verb in the surface reading while getting the answer requires it to be read as a noun and the suggestion of the 'wrong' meaning of 'font'.