When all the kids in the neighbourhood get together to fill plastic eggs, this Easter looks as if it will be 'eggcellent'. Only this year instead of the 'Easter bunny' the mothers from Robin's Nest Circle are doing the egg hiding. And best of all, the prize for the egg hunt is extra cute- some 'bunny' is bound to win it. But when nine-year-old Elisabeth Vanklewen and her best friend Eveline Brighton (The Clue Duo) discover that 'somebunny' is missing they hop to it, and try to crack the case.

When nine-year-old Elisabeth Vanklewen and her best friend Eveline Brighton name themselves the Clue Duo, it seems like their dreams of solving mysteries are going to take some time to come true. But when a certain rubber lizard goes missing, it looks like the Clue Duo has found their first case. When there are so many people who love banana lizards, it seems like everyone is a suspect. Join the Clue Duo as they solve their first case.

It's time to solve the last mystery of the Clue Duo series. Help nine-year-old Elisabeth Vanklewen her best friend Eveline Brighton as they look around for clues to solve this Christmas catastrophe. With seven fun filled chapters, a few suspects and a handful of clues, this mystery turns out to be one tough cookie... just in time for the Holidays!

Autumn is just beginning and leaves are not the only things that are changing colour. With Springbrook's new theme, Going Green, this year's fall fair is sure to be a hit. But when a mystery pops up, nine-year-old Elisabeth Vanklewen and her best friend Eveline Brighton (The Clue Duo) try to see things through a different perspective as they attempt to solve this 'natural' disaster. With a whole lot of pumpkins and some 'sweet' clues the Clue Duo is on the case. A great novel for young readers, especially those who love mysteries.

It's time for the summer sunshine and nine year-old Elisabeth Vanklewen and her best friend Eveline Brighton are ready. With a kids sandcastle contest that their town has organized and some tough competition, the castle building is going to be "sandtastic", for "shore". But when there are some 'fishy' goings on along the beach, it seems like the friends have another mystery to solve. After some "sandsational" sleuthing it becomes clear that only Elisabeth and Eveline (The Clue Duo) can solve the case. Join Elisabeth and Eveline along with their classmates, Brad and Colin, as the Clue Duo solves the case while having some fun in the sun.

When nine-year old Elisabeth Vanklewen and her best friend Eveline Brighton (the Clue Duo) decide to attend a rubber duck river race to raise money for their school, St. Angelica Elementary, they discover their third mystery, and it really seems like they are out of "duck". But with a stream of suspects and 2000 rubber ducks you are never really out of "duck". Join the Clue Duo as they "quack" this case and discover that sometimes the answer to a problem is not clear... it's muddy.

This is a children's book containing seven chapters. It is a mystery novel for young readers, and is the second book in the Clue Duo series. The book follows the story of a girl named Elisabeth VanKlewen and her best friend Eveline Brighton. Both girls share a desire to solve mysteries, and it is in this book that they get their second opportunity to do so, as they solve the case of the missing mineral. As the mystery progresses, the girls learn that sometimes, the answer to a case can become crystal clear. A rock solid piece of reading for young readers.