Come Learn the Double Hook Swords. The Hook Swords are four weapons combined into one: a sharpened hook, straight sword, dagger, and a crescent reminiscent of deer horn knives. The form itself turns you into a whirlwind of spinning steel. There are two prices : $165 for Seminar and Double Hook Swords or $125 for just the seminar. Register by 10/30 to get swords in time.