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Bike tour mystery: Riding uphill is hard - but going down can send you over the edge! Nancy, Bass, and George are all geared up for a bike tour in Ireland. They're looking forward to spectacular scenery, romantic ruins, local entertainment, and, at the end of the day, cozy inns to welcome them. But it isn't long before the three friends realize that they're riding with danger. From the moment they arrive at the airport, someone seems to be targeting the tour members, especially the two teen sisters from Australia. Even worse, not all the cyclists are what they appear to be. As the group bikes along sheep-filled roads and steep seaside cliffs, the menace mounts. Nancy knows that if she makes one wrong turn she'll be on a detour to disaster!Riding club crime: This summer, nothing's safe at Green Spring - not even the camp itself... Elsa, a friend of Nancy and George's and a counselor at Green Spring Pony Club's summer camp, invites the girls for a ride one afternoon. Along the way, Elsa gushes about how a team of campers will compete in a regional pony club rally. If they win, they'll go to the national competition! But Elsa's excitement quickly fades when Nancy's horse falls into a ditch, and it's clearly a case of sabotage. This prompts Elsa to tell Nancy about some sinister happenings on the camp's grounds. Is someone trying to hurt the campers - or the camp? Disguised as a counselor, Nancy tries to figure out who's behind the vicious accidents. And as they become more devastating, Nancy realizes she needs to move quickly. Will her sleuthing skills be enough to keep this camp's horses and their riders on track?Werewolf in a winter wonderland: Things are hairy in River Heights this holiday season. Two wolves have disappeared from WildWolf, the federal wolf preserve just outside of town. Local farmers think the missing wolves are killing their sheep, but there are also rumors of werewolf sightings nearby. At the same time, the annual River Heights Winter Carnival is set to begin. When the first two days of the outdoor festival are full of tragic disasters, Nancy can't help but wonder -- is there a link between the carnival's trouble and the missing wolves? After the carnival's beautiful ice palace is destroyed, Nancy's sure there's a wolf at River Heights's door. But is the leader of this pack of crimes human, or beast?