Your job is to track the gorillas and write their story. It's no easy task. Poachers, wild buffaloes, snakes, and the Ugandan jungle itself put your life at risk. A girl from the local village goes missing and the world's eyes are on you when the BBC shows up with a film crew to document your work.

    You are deep in the wilderness when suddenly you're caught in a hunting snare...

    Now the agency is counting on you to find the deadly Dimitrius, a human time bomb who can explode with all the force of an atomic blast! But before you start your search, you'll need an undercover identity. What should you be?If you decide to pose as a professional gambler, turn to page 74. If you pretend to be an art collector, turn to page 23. Think carefully! Dimitrius is dangerous. He might shatter you into a thousand fiery pieces—unless you can outsmart him and save the world from disaster!What happens next in the story? It all depends on the choice you make. How does the story end? Only you can find out! And the best part is that you can keep reading and rereading until you've had not one but many incredibly daring experiences!

    You and your friends Tony and Andrea set off in search of another friend, Jill, who has vanished in the Bermuda Triangle.

    EVIL POWER MASTER CLAIMS RESPONSIBILITY.He's back! And the Evil Power Master is seeking revenge. You are the primary unit commander of the Lacoonian System Rapid Force response team, in charge of protecting all planets in the Lacoonian System. As you and your team position to find and fight him, you discover that the Evil Power Master has zeroed in on three planets. His goal is to destroy them and all life on them. Your gut tells you he will stop at nothing now."You're right, Flppto. I hoped we had destroyed him in the Purple Days War.""Well, Commander, don't be hard on yourself. You did your best. His power must be strong again, or he would never have attacked. What form he will take this time remains to be seen.""What should we do?"If you decide to check out Sector immediately, turn to page 6. YOU choose what happens next!

    Walk into the Cave of Time and don't turn back. Keep going. I know it's dark and your hands feel clammy. The passageway you're in is getting so it's about half an inch wider than you are. But keep going. You are about to see the beginning of time, the end of time, and some wild times in between. I don't want to say what could happen to you. I just hope you'll know what to do when you need to know it, and have good luck along the way.

    Magically transported to Sherwood Forest, the reader must come to the aid of Robin Hood after the evil Sheriff of Nottingham captures Maid Marian.

    You're riding horseback toward an eerie castle when a thick fog rolls in. Suddenly you're surrounded by wolves! Your uncle races ahead- but Nina is thrown off her horse and disappears into the fog. What should you do?If you decide to stay and look for Nina, turn to page 54. If you decide to go on ahead with your uncle, turn to page 69. Beware! You might be attacked by deadly vampires, or you might find the magic jewel that will destroy their evil forever!

    You have spent almost six months alone in space, and your only companion is your computer, Henry. You are steering your ship through a meteorite shower when an urgent signal comes from headquarters—a ship in your sector is under attack by space pirates!

    You travel from France to Africa in a balloon, accompanied by your friends Peter and Sarah and a dog named Harry.

    Could it be the remnants of the fabled Lost City of Gold? Or will your search be just another wild goose chase?

    To the surprise of many, the Topham family will inherit wealthy Josiah Crowley's fortune, instead of deserving relatives and friends who were promised inheritances. Nancy determines that a clue to a second will might be found in an old clock Mr. Crowley had owned and she seeks to find the timepiece. Her search not only tests her keen mind, but also leads her into a thrilling adventure.

    They're putting up rides and booths for the annual carnival. But this year things look really different. Really odd. Really scary. The place is lit up by a hundred fiery torches. And spooky music is coming from the main tent. Then you meet Big Al, the creepy carnival manager. He's invited you in to test some of the rides. Will you brave the terrifying Supersonic Space Coaster? Risk the horrors of the Reptile Petting Zoo? Slice through the oily waters of Booger Bog? Or confront the evil Snake Lady? The choice is yours in this scary GOOSEBUMPS adventure that's packed with over 20 super spooky endings.Readers beware—you choose the scare! GIVE YOURSELF GOOSEBUMPS

    This first one, "The Tower Mystery," introduced the action, mystery, and suspense themes. The boys continue to deliver thrills to this day.It all starts with the boys, Frank and Joe, on their motorcycles delivering important papers to a lawyer in Willowville for their father, Fenton Hardy. He's the well-known private investigator in Bayport. A reckless driver almost forces them over the embankment. It is not long before they find that their friend Chet's yellow jalopy has been stolen, possibly by the same red-haired driver! Stolen loot may be the issue. Later a dying criminal confesses that the loot has been stashed "in the tower" and the Hardy Boys make an astonishing discovery.

    They aren’t allowed to leave the property or show themselves to anyone. But when a new caretaker comes to live there with his young daughter, Lissa, Diana is tempted to break the mysterious rules they live by and reveal herself so she can finally have a friend. Somehow, Diana must get Lissa’s help if she and Georgie ever hope to release themselves from the secret that has bound them to the old Willis place for so long.    Mary Downing Hahn has written a chilling ghost story in the tradition of her most successful spine-tingling novels. The intriguing characters, frightening secrets, and plot twists will delight her many fans.