I was doing some creative writing and asked a friend to proofread it. They tell me they choked up at this point:
‘I don’t know,’ says Scott. ‘I’ll need to think about it.’
‘Let me know if you’ll come’, reply I, an insistent expression surely covering my face. ‘I hope you can make it.’
My friend claims that this is bad grammar, but I beg to differ. I usually take the post-positive subject after a quote; such has been how I have written all my life. I see ‘says Margaret Peterson’, ‘says she’, and other things as such following quotes in many books and newspapers. Is it truly wrong (or archaic) to say ‘say I’ or phrases related to it?
Edit: I hear ‘So say I’ as a statement, too. On the other hand, I never hear ‘So I say’, except in the case of ‘So, I say to him ...’ Would ‘So I say’ ever be used instead of ‘So say I’?