There is something fishy about the newest house guest, but Maddie and Triggs are determined to get to know the new arrival and figure out what makes him bloop.

While helping Mum babysit their neighbour Sally, Maddie and Triggs learn that words can sometimes be confusing, especially if they're coming from the mouth of a mischievous toddler.

It's a rainy day, and Maddie and Triggs are bored. But when they start to really listen to all the tiny sounds in their house, they soon discover the music of the noises indoors.