Derek Landy said this quote

I need a weapon,” Valkyrie muttered.“You’re an Elemental with a Necromancer ring, trained ina variety of martial arts by some of the best fighters in the world,” Skulduggery pointed out. “I’m fairly certain that makes you a weapon.”“I mean a weapon you hold. You have a gun, Tanith has a sword... I want a stick.”“I’ll buy you a stick for Christmas.