waterfall； he had time to observe the bubbling pool beneath him as he fell slowly； silently toward it。
Then； with a stinging slap； Grant plunged into cold water； surrounded by white boiling bubbles。 He tumbled and spun and glimpsed the leg of the tyrannosaur as he was swirled past it； swept down through the pool and out into the stream beyond。 Grant swam for the shore； clutched warm rocks； slipped off； caught a branch； and finally pulled himself out of the main current。 Gasping； he dragged himself on his belly onto the rocks； and looked at the river just in time to see the brown rubber raft tumble past him。 Then he saw Tim； battling the current； and he reached out and pulled him； coughing and shivering； onto the shore beside him。
Grant turned back to the waterfall； and saw the tyrannosaur plunge its head straight down into the water of the pool at his feet。 The great head shook； splashing water to either side。 It had something between its teeth。
And then the tyrannosaur lifted its head back up。 Dangling from the jaws was Lex's orange life vest。
A moment later； Lex bobbed to the surface beside the dinosaur's long tail。 She lay face down in the water； her little body swept downstream by the current。 Grant plunged into the water after her； was again immersed in the churning torrent。 A moment later； he pulled her up onto the rocks； a heavy； lifeless weight。 Her face was gray。 Water poured from her mouth。
Grant bent over her to give her mouth…to…mouth but she coughed。 Then she vomited yellow…green liquid and coughed again。 Her eyelids fluttered。 〃Hi；〃 she said。 She smiled weakly。 〃We did it。〃
Tim started to cry。 She coughed again。 〃Will you stop it？ What're you crying for？〃
〃Because。〃
〃We were worried about you；〃 Grant said。 Small flecks of white were drifting down the river。 The tyrannosaur was tearing up the life vest。 Still turned away from them； facing the waterfall。 But at any minute the animal might turn and see them。 。 。 。 e on； kids；〃 he said。
〃Where are we going？〃 Lex said； coughing。
〃e on。〃 He was looking for a hiding place。 Downstream he saw only an open grassy plain； affording no protection。 Upstream was the dinosaur。 Then Grant saw a dirt path by the river。 It seemed to lead up toward the waterfall。
And in the dirt he saw the clear imprint of a man's shoe。 Leading up the path。
The tyrannosaur finally turned around； growling and looking out toward the grassy plain。 It seemed to have figured out that they had gotten away。
It was looking for them downstream。 Grant and the kids ducked among the big ferns that lined the riverbanks。 Cautiously； he led them upstream。 〃Where are we going？〃 Lex said。 〃We're going back。〃
〃I know。〃
They were closer to the waterfall now； the roar much louder。 The rocks became slippery； the path muddy。 There was a constant hanging mist。 It was like moving through a cloud。 The path seemed to lead right into the rushing water； but as they came closer； they saw that it actually went behind the waterfall。
The tyrannosaur was still looking downstream； its back turned to them。 They hurried along the path to the waterfall； and had almost moved behind the sheet of falling water when Grant saw the tyrannosaur turn。 Then they were pletely behind the waterfall； and Grant was unable to see out through the silver sheet。
Grant looked around in surprise。 There was a little recess here； hardly larger than a closet； and filled with machinery： humming pumps and big filters and pipes。 Everything was wet； and cold。
〃Did he see us？〃 Lex said。 She had to shout over the noise of the falling water。 〃Where are we？ What is this place？ Did he see us？〃
〃Just a minute；〃 Grant said。 He was looking at the equipment。 This was clearly park machinery。 And there must be electricity to run it； so perhaps there was also a telephone for munication。 He poked among the filters and pipes。
〃What are you doing？〃 Lex shouted。
〃Looking for a telephone。〃 It was now nearly 10：00 a。m。 They had just a little more than an hour to contact the ship before it reached the mainland。
In the back of the recess he found a metal door marked MAINT 04； but it was firmly locked。 Next to it was a slot for a security card。 Alongside the door he saw a row of metal boxes。 He opened the boxes one after another； but they contained only switches and timers。 No telephone。 And nothing to open the door。
He almost missed the box to the left of the door。 On opening it； he found a nine…button keypad； covered with spots of green mold。 But it looked as if it was a way to open the door； and he had the feeling that on the other side of that door was a phone。 Scratched in the metal of the box was the number 1023。 He punched it in。
With a hiss； the door came open。 Gaping darkness beyond； concrete steps leading downward。 On the back wall he saw stenciled MAINT VEHICLE 04/22 CHARGER and an arrow pointing down the stairs。 Could it really mean there was a car？ 〃e on； kids。〃
〃Forget it；〃 Lex said。 〃I'm not going in there。〃
〃e on； Lex；〃 Tim said。
〃Forget it；〃 Lex said。 〃There's no lights or anything。 I'm not going。〃
〃Never mind；〃 Grant said。 There wasn't time to argue。 〃Stay here； and I'll be right back。〃
〃Where're you going？〃 Lex said； suddenly alarmed。
Grant stepped through the door。 It gave an electronic beep； and snapped shut behind him； on a spring。
Grant was plunged into total darkness。 After a moment of surprise； he turned to the door and felt its damp surface。 There was no knob； no latch。 He turned to the walls on either side of the door； feeling for a switch； a control box； anything at all。 。 。 。
There was nothing。
He was fighting panic when his fingers closed over a cold metal cylinder。 He ran his hands over a swelling edge； a flat surface 。 。 。 a flashlight！ He clicked it on； and the beam was surprisingly bright。 He looked back at the door； but saw that it would not open。 He would have to wait for the kids to unlock it。 Meantime 。 。 。
He started for the steps。 They were damp and slippery with mold； and he went down carefully。 Partway down the stairs； he heard a sniffing and the sound of claws scratching on concrete。 He took out his dart pistol； and proceeded cautiously。
The steps bent around the corner； and as he shone his light； an odd reflection glinted back； and then； a moment later； he saw it： a car！ It was an electric car； like a golf cart； and it faced a long tunnel that seemed to stretch away for miles。 A bright red light glowed by the steering wheel of the car； so perhaps it was charged。
Grant heard the sniffing again； and he wheeled and saw a pale shape rise up toward him； leaping through the air； its laws open； and without thinking Grant fired。 The animal landed on him； knocking him down； and he rolled away in fright； his flashlight swinging wildly。 But the animal didn't get up； and he felt foolish when he saw it。
It was a velociraptor； but very young； less than a year old。 It was about two feet tall； the size of a medium dog； and it lay on the ground； breathing shallowly； the dart sticking from beneath its jaw。 There was probably too much anesthetic for its body weight； and Grant pulled the dart out quickly。 The velociraptor looked at him with slightly glazed eyes。
Grant had a clear feeling of intelligence from this creature； a kind of softness which contrasted strangely with the menace he had felt from the adults in the pen。 He stroked the head of the velociraptor； hoping to calm it。 He looked down at the body； which was shivering slightly as the tranquilizer took hold。 And then he saw it was a male。
A young juvenile； and a male。 There was no question what he was seeing。 This velociraptor had been bred in the wild。
Excited by this development； he hurried back up the stairs to the door。 With his flashlight； he scanned the flat； featureless surface of the door； and the interior walls。 As he ran his hands over the door； it slowly dawned on him that he was locked inside； and unable to open it； unless the kids had the presence of mind to open it for him。 He could hear them； faintly； on the other side of the door。
〃Dr。 Grant！〃 Lex shouted； pounding the door。 〃Dr。 Grant！〃