They definitely exist, not sure which source book. In the Secrets of Sarlona book there is a feat specifically for hook swords called Flying Tiger. It allows you to hook the swords together and use them as a reach weapon. Which they did in the show IIRC.
That feat is in secrets of sarlona because that's the book they gave the twin hook stats in.
Yes, they are a monk weapon. Not a terribly impressive one though.
I am not seaweed. That's a B.
Praise I've received
Originally Posted by ThiagoMartell
Kelb, recently it looks like you're the Avatar of Reason in these forums, man.
Originally Posted by LTwerewolf
[...] bringing Kelb in on your side in a rules fight is like bringing Mike Tyson in on your side to fight a toddler. You can, but it's such massive overkill.