Erika McGann

Cass, Lex and Nicholas investigate crimes, solve mysteries and have brilliant adventures. They've even got their own secret clubhouse. Cass is ecstatic. Mr McCall's partner is starting a Scarecrow Festival at the McCall mansion, and it includes an all-day, mind-boggling scavenger hunt.

Cass, Lex and Nicholas investigate crimes, solve mysteries and have brilliant adventures. They've even got their own secret clubhouse. Cass is not impressed with the new Residents' Association programme – suddenly everyone's in Neighbourhood Watch and thinks they're a genius detective.

Cass and her best friends, Lex and Nicholas, are the Bubble Street Gang! They investigate crimes, solve mysteries and have brilliant adventures. They've even got their own secret clubhouse. The gang need money and quick, and they have some super-genius ideas on how to make it!

After the annoying baby twins demolish the fort Cass has built in the sitting room, she has the great idea of building a proper fort outdoors that can be the Bubble Street Gang's clubhouse. Lex's granny suggests the perfect spot at the back of Mr McCall's field and Cass and the gang get to work.