Joe and his friend Skip are enjoying the thrill of the Big Dip, a famous rollercoaster, until they learn the old man in front of them has been shot. The old man mutters with his dying breath something about getting a Margaret Rose to the police. Joe leaves the crime scene to get on with his life. But someone is desperate for the Margaret Rose and thinks Joe has it. When his sister is kidnapped, Joe is in a race against time to solve the puzzle.
Dan is not sure he'll survive the boring field trip to a remote heritage farm. How could a place with no running water, telephone or electricity be anything but dull? The farmer knows nothing about farming and is angry about having to conduct the tour. And what's with his tattoo? The teacher requests a private word with the farmer and then mysteriously disappears. After a messy attack of allergies, Dan is excused to find a tissue. He sneaks back to the school bus and discovers the driver and teacher have been bound and gagged. The farmer is really an escaped convict with nasty plans. Will Dan be able to find help in time?
Left alone for the first time on the island he calls home, Simon is looking forward to a day of personal indulgence. His sister Ellen only wants to make sure they get their chores done. Their parents are busy trying to convince the government not to close the lighthouse that the family operates, and it's up to the kids to make sure everything runs smoothly. Neither Simon nor Ellen is prepared for the mysterious and potentially dangerous visitor who brings with him an unexpected storm and a riddle that may lead to treasure - treasure that could help them save the lighthouse. Simon and Ellen have to work together to solve the riddle before the stranger or the weather destroys their chances.
Jim, Mickey and Lisa belong to a secret club called the Sewer Rats. Every Saturday the Sewer Rats reign supreme in paintball wars held in the city's storm drain system. The new kid, Carter, wants to join, but Lisa doesn't want him in the club. When Carter is hurt in his first paintball war, Jim and Mickey suspect that Lisa planned the accident. They try to confront her, but she runs into the tunnels just as a rainstorm begins. Jim and Mickey have to get Lisa out before the tunnels fill with water.
Eric and Chris are avid geocachers who stumble into a very strange search for a series of geocaches. At first they are merely curious, but as the stakes rise and the challenges become more trying, the boys get truly hooked. Convinced they are indeed on the trail of treasure, they become consumed with the search, and though their quest tests their strength, intelligence, courage and even their friendship, they don't give up.
On his way to baseball practice, Zeke lines up for Vancouver's newest thrill ride: Death Drop, an elevator that falls faster than gravity. The theme of the ride is based on the story of Persephone, who tumbled into the underworld. Zeke tumbles into a frightening situation himself after he discovers a little girl who is lost. He takes her to the Death Drop manager's office. But later, when he tries to find out what happened with her, the ride's staff say they never saw her! To find the missing girl, Zeke must navigate a devilish plot that includes Dante Gabriel Rossetti's famous painting Proserpine, a fiery drop into flames, and an angry coach.
Thirteen-year-old Chris and his family are setting up a bungee jump in his backyard. It's a real large-scale bungee jump off a bridge that connects his backyard to a small island owned by his family. Not only is it going to be the coolest attraction around, but it also provides Chris with an opportunity to watch a real engineer in action. Chris would be excited about it if things didn't keep going wrong. The rumors of hauntings on the island, once the site of a hospital for children with leprosy, are getting out of control. And there are mysterious mishaps on the bridge. Chris worries that all of these problems will keep customers away. And if the bungee jump isn't a success, his family will lose everything.