Alathan said:Wizards does indeed have the entire Bloodstone series available to buy and download on their website: H1, H2, H3, H4 and FR9. You can get them at http://store.wizards.com.
Well, I was *going* to give you the direct URLs to each book, but it seems that store.wizards.com is down right now, so I don't know what to tell ya. I bought the ESDs from the store some months ago, but I don't know where else you can get them.
I suppose you could always look to buy the original books on eBay....