Now in Paris with her parents who are filming their TV show about the world's haunted cities, Cassidy Blake (who can see ghosts) and her friend Jacob (who is a ghost) are alert for trouble, especially when the filming takes them into the underground Catacombs, the empire of the dead, where Cassidy accidentally awakens a powerful poltergeist spirit--one whose mystery she must solve before his power in unleashed on the whole city.--

A mysterious postcard leads Lisa and Nilly from Oslo to Paris in search of Doctor Proctor but, once there, all they find of their missing friend is a time-traveling bathtub powered by a special soap and several sinister individuals determined to do all they can to locate the eccentric inventor.

Henry, Anna, and Jose, the junior members of the Silver Jaguar Society, are on a mission in Paris to recover the Mona Lisa--but when senior members of the Society are taken hostage, it is up to Henry to rescue them while continuing to pursue the missing masterpiece.

When the Musketeers pursue the dangerous Michel Dinicoeur to Spain, they're ambushed at every turn, causing them to suspect that there may be a traitor within their own ranks.

"Engaging images accompany information about the Paris Catacombs. The combination of high-interest subject matter and light text is intended for students in grades 3 through 7"--Provided by publisher. Long ago, the cemeteries of Paris were overflowing with dead bodies. The solution? Dig up the bones and move them to quarries beneath the city. Now the dark tunnels are artfully lined with bones and skulls, but visitors notice more than the décor....

When Mae's Aunt Willa and Aunt Jane, both pilots, are kidnapped by evil Metallic Falcon, Josie, Mae, and Akiko, the Infinity Trinity, pursue them from Chicago to Sweetwater, Texas, to Paris, France.

"Jordan, Drew, Liam, Maury, and their friends from Riverdale Academy Day School are heading out on a school trip to Paris. As an aspiring artist himself, Jordan can't wait to see all the amazing art in the famous City of Lights. But when their trusted faculty guides are replaced at the last minute, the school trip takes an unexpected--and hilarious--turn. Especially when trying to find their way around a foreign city ends up being almost as tricky...