" She whirled when the monster was almost on top of her. I thought the thing in her hands was an umbrella until she cranked the pump and the shotgun blast blew the giant twenty feet backwards, right into Nico's sword.
"Nice one," Paul said.
"When did you learn to fire a shotgun?" I demanded.
My mom blew the hair out of her face. "About two seconds ago. Percy, we'll be fine. Go! "

― Rick Riordan , The Last Olympian (Percy Jackson and the Olympians, #5)