I can't solve this one because I don't have the answer to 140. Can anyone give me a hint as to the answer of 140 or a nudge?

*Cricket Cricket*

Still stuck! Any help would be most appreciated. I've tried counting the pages, adding the page codes, everything I can think of.

I thought for sure it was:
But I am very stuck.

I get too but that is not working. Can I get a further nudge?