Two hundred Romans, and no one’s got a pen? Never mind!” He slung his M16 onto his back and pulled out a hand grenade. There were many screaming Romans. Then the hand grenade morphed into a ballpoint pen, and Mars began to write. Frank looked at Percy with wide eyes. He mouthed: Can your sword do grenade form? Percy mouthed back, No. Shut up. By Rick Riordan Quick View Author All Quotes, Rick Riordan Tag: #frank-zhang, #heroes-of-olympus, #humor, #mars, #percy-jackson, #transformation