Shots roared in the distance as they forced the boat through the pools of stagnant water. Apparently the shots came from the other exploring parties shooting flying lizards or other creatures. Once a flying lizard swooped over their boat but it changed its mind and went on to attack something else. And, as they forced the boat through a clump of reeds and into a clear channel, something monstrous snorted near them. Loud crashes sounded in the swamp tangle.

"It looks as big as an elephant," Craig shouted. "Get your guns ready."

He could see the movement of the reeds as the beast crashed toward them. Small trees were shaking, marking its passage, then it thrust its head out of the tangle not fifty feet from them.

"It's a dinosaur!" Michaelson shouted. The scientist was wildly excited. "It's a live dinosaur."

"It's going to be a dead one if it comes any closer," Craig said grimly.

"No, don't shoot," the scientist said. "It's one of the herbivorous dinosaurs, a vegetation eater. It won't harm us."

The sailors in the boat were nervously fingering their tommy-guns and staring at the mountain of flesh that was half-hidden by the jungle growth. It, in turn, stared at them. It was bigger than any elephant that ever walked the earth, and Craig, as he estimated the size of the beast, was wondering whether the tommy-guns would stop it if it chose to attack.

"If we have to shoot, aim at the head," he whispered.

In comparison to the rest of the body, the head was small. It would present a difficult target but a hit in the head might stop the beast whereas a hit in the huge body would pass unnoticed. The dinosaur stared at them. Seconds ticked into minutes. It moved its head in a circle, sniffing the air. Michaelson wanted to get out of the boat and swim to shore so he could examine it closely.