CrossBow?

I just learned the skill Fallen Arrow and I can't use it with my current bow. Where can I find a crossbow to use? I looked in the shops for one but I might have over looked it. =(

I don't think you need a bow to use Fallen Arrow. If you read the skill description, it makes no mention of a bow or crossbow requirement.

Crossbows are available at D grade. No Grade crossbows do not exist.

Also u cannot buy crossbows. You will learn one skill "change weapon" and after you equip to your character one bow u will use it and the bow will change to crossbow

It's just a nuke skill that require souls you can use any weapon ;)