Knockdown

As they charged across the sandy beach, Reb let out a wild rebel cry that almost raised the hair on the back of Sarah's neck. Reb got to the intruder first and threw himself on him. Down they went. The others were yelling and trying to get into the fight. Then Sarah ran up holding a torch, saying, “Who are you?”

Josh grabbed an arm, jerked the intruder to his feet, and then stood stock still. A gasp went up from the group, and Josh muttered, “Why—you're just a girl!”

What Sarah saw was a young woman of perhaps eighteen, with black hair and green eyes. She wore some sort of transparent costume through which Sarah could see a green swimming suit that looked much like fish scales. A strange-looking belt was around her waist, having several tubes that ran up to the top of her suit.