The penguins of Antarctica are writing to invite the polar bears of the Arctic to a party at the South Pole in this humorous picture book.

In this illustrated early chapter book, Lark and Connor Ba have been invited to judge a community baking contest, but when a contestant's dessert is sabotaged, the amateur detectives have to solve the case if they are going to have any sweets left to sample.

In this illustrated early chapter book, Lark and Connor Ba have been invited to judge a community baking contest, but when a contestant's dessert is sabotaged, the amateur detectives have to solve the case if they are going to have any sweets left to sample.

In this early chapter book, Lark and her brother, Connor, find the culprit when a pair of diamond earrings goes missing from the general store.

In this early chapter book, Lark and her brother, Connor, find the culprit when a pair of diamond earrings goes missing from the general store.

In this illustrated early chapter book, super sleuths Lark and Connor Ba must investigate a threatening note and stolen watch while they are helping set up for the Run in the Sun fundraiser.

In this illustrated early chapter book, Lark and Connor are asked to solve two mysteries in one day! When pets go missing from the local fair and Sophie’s house appears to be haunted, the Ba twins have only a little time to figure out a lot of problems.

In this early chapter book, rookie detectives Lark Ba and Connor come to the rescue when the librarian misplaces her library key.

In this early chapter book, rookie detectives Lark Ba and Connor come to the rescue when the librarian misplaces her library key.

In this illustrated early chapter book, Lark and Connor are called upon to defend their friend when he is framed in the theft of a fellow student's artwork at an art show.

In this early chapter book, amateur detectives Lark and Connor Ba figure out which of their fellow actors is playing pranks on the local theater company.

In this early chapter book, amateur detectives Lark and Connor Ba figure out which of their fellow actors is playing pranks on the local theater company.

In this early chapter book, Lark and Connor help their halmoni's friend Miss June try to find out who stole her quilt and get it back in time to display it at the local quilt show.