The book trailer for Scott Westerfeld's Leviathan takes us into his steampunk-flavored alternate universe, where the death of Archduke Franz Ferdinand triggers an all-out war where mechanical weapons face off against airships made from giant squid and whales.

We've already shown you concept art for Westerfeld's book, but below is the full-motion trailer from steampunk artist Keith Thompson:

The trailer is a handy way to sell books, but based on this, I'm ready to hand over my nine dollars for an eventual Leviathan feature film as well. Leviathan comes out October 6th.

[via Westerblog]