"Olivia Grace Clarisse Mignonette Harrison should be having fun. Her best friend is visiting from America, her sister's royal coronation is only three days away (the first coronation of a female ruler in two centuries), and she's even got a new boyfriend who is actually a very smart and charming prince. But it's hard to celebrate when her royal cousins are scheming to take over the throne"--Dust jacket flap.

Jessie, twelve, copes with what promised to be a long, boring summer with relatives by becoming apprentice to Wes, a grouchy neighborhood dog walker, who is facing new competition.

While visiting New York's Yankee Stadium with Kate's mother, cousins Mike and Kate decide to investigate the rumor that the ghost of Babe Ruth is haunting the stadium.

Kylie Jean is studying hard for the spelling bee at school, but she keeps getting distracted by the kitten that she and her cousin Lucy found.

When cousins Mike and Kate go to Kansas City for the All-Star game, they meet the son of the American League starting catcher who stands falsely accused of playing practical jokes on his All-Star teammates.

"When Mike and Kate visit Detroit, someone is blackmailing the Tigers' famous slugger, Tony Maloney"--

The haunting starts even before Sophie arrives on the Isle of Skye to spend the summer with her cousins, but when she arrives she finds a house haunted by the ghost of a girl who attended school there a hundred years ago, as well as cousin Rebecca who died young and is never mentioned by her family--and she must somehow solve the mystery of the frozen Charlotte dolls before the whole family is destroyed.

"Eleven-year-old cousins who are closer than most brothers, catcher Liam McCarthy and pitcher Carter Jones grew up playing baseball together. Now, their team is on the verge of winning the greatest championship of all: the Little League Baseball World Series. To reach the title match, however, they must first beat their number one rivals from Southern California. Little do they know that the game will prove to be just the first challenge they'll face...

"Danny Dragonbreath must save his cousin from the ultimate enemy: Knights!"--

Cousins Kate and Mike visit Kate's father, a baseball scout for the Dodgers, in Los Angeles just as a series of suspicious events leads him to think that someone's trying to steal his scouting reports.