The streets of Dalton have turned holey like Emmental cheese!

Mabel Merryweather’s friend Bruno and his goats have arrived from Switzerland to perform at the Dalton cheese festival. This fragrant event has attracted a lot of people to the venue, but to the horror of the townspeople, mysterious holes have started to appear on streets and courtyards at night. Who digs them – and why? The rumor spreads that the town is infested by aliens, but Lilly, Nick, and the mighty Mabel Merryweather don’t believe the gossip. With the help of yodeling goats, they dig up the truth.