I've had a few readers who bought Heller's Punishment from Smashwords comment on the size of the book - that is they thought it was much smaller than the previous three. I'd just like to correct that thought.
The Smashwords Style Guide advises against numbering pages in an ebook because it's meaningless to do so. Different ereaders provide different reading experiences. Reading a book on an iPhone will be different to reading the same book on a Nook or iPad or Kindle. And with readers able to change the size and type of fonts to suit themselves, this will also obviously affect and personalise the reading experience. Having said all of that, I've noticed that ebooks sold at Barnes & Noble seem to appear longer. Blood Ties, for example, comes in at 403 pages on the EPUB version, but on the Nook version people have said that it's over 1000 pages long!! Heller comes in at 291 pages, but on Nook it seems to be over 700 pages long! Heller's Punishment is 299 pages in EPUB (which I read in Adobe Digital Editions), so I expect it would appear to be about 700 pages on the Nook, judging by what's been said previously. But then, none of these numberings match the page numbering I have for the original manuscripts written in MS Word, the application with which I write and submit my books.
So, page numbering in ebooks? Forget about it!
But anyway, just for the record, here are the word counts for each of my books (this includes front and back matter). HP is slightly smaller than the previous two but longer than the first.
Heller: 104,460 words
Heller's Revenge: 108,130 words
Heller's Girlfriend: 108,440 words
Heller's Punishment: 106,630 words
Blood Ties: 153,020 words
Blood Sport: 133,070 words
Blood Feud: 133,980 words [updated 3 Dec 2012]
I don't worry too much about word counts. I like to write the story and when it's finished, the book ends - whatever the word count :-)