Books with author Mary-Kate Olsen

Talk about style! Ashley and I were invited to a cool costume party at the house of a famous mystery writer, Fiona O'Leary. We couldn't wait to hit the ballroom for the big 1920s dance contest.The whole flap started when Fiona's adored cat disappeared. And everyone thought our dog Clue "dunnit"! Ashley and I were sure our pooch was framed. But we'd have to prove it -- or Olsen and Olsen could end up Clue-less!

Trenchcoat TwinsCase Report...fromMary-Kate & AshleyOlsen and Olsen ahoy! Ashley and I set sail on a fantastic cruise vacation -- our whole family. The Ocean Queen had everything: pools, water slides, a video game arcade, even a Super Scavenger Hunt for the kids!But this cruise wasn't all smooth sailing. Someone was stealing the prizes for the Super Scavenger Hunt! Could we get to the bottom of this case --before the fun took a dive?

London BridgesChloe and Riley Lawrence are going to London! They've been picked to compete with other kids from around the world in a United Nations contest: How Would You Mke the World a Better Place to Live? Chloe and Riley have a great idea and they know they can win.What Chloe and Riley don't know is that someone wants to make sure they lose. Will they figure out who it is before it's too late?

Mary-Kate and Ashley are thrilled about participating in an ice cream-making contest at Sweet Sundaes, an ice cream store in town. Whoever invents the best new flavor will win a free sundae-a-week for a year! The twins stir up a delicious new flavor -- Creamy Orange Choco Chunk-and everyone agrees it's the best ice cream they've ever tasted. But it looks as if the yummy new flavor is a recipe for disaster! First, the ice cream disappears. Then their secret recipe is stolen. Can Mary-Kate and Ashley find the culprit before their sweet success turns sour?

Bella Roma! Leila and Charli are about to start their summer jobs at a world-famous fashion house in Rome! and Rome is more amazing than they ever dreamed. The Colosseum ... the Trevi Fountain ... the cute boys ... But then someone gets them fired on their very first day at work. Leila and Charli have to find out who's responsible -- or their hot Italian summer will be over before it begins.

Dear Diary, I decided to join the big tennis tournament at camp. My doubles partner, Andrew, is really cute! The coach says we can't date, but Andrew says we should break the rules. Hmmm. I guess we'll just have to make sure we don't get caught! -- Ashley Dear Diary, Well, it's official. I can tie three kinds of knots and climb a tree in under three minutes. How is this useful, you ask? It's all apart of a contest our camp is having with the rival camp down the road, and I want to win! But someone is standing in the way of our victory. My very own sister! -- Mary-Kate