Shamus Reilly lives in County Donegal, a little mouse who has a really good heart. Through tragedy and the loss of all his possessions, he decides to move to England and live in a house with his cousins, who had moved there some years previously. However, one Danny Lamprey swaps his ticket to Oxford and instead of going to Oxford to be with his cousin's, poor Shamus ends up in Gillingham in Kent. Great courage and determination sees Shamus through in the end. Along the way he meets several new mice, dogs and other animals. Then there is Harold Turner-Broom, once a pest control agent, will...

The second book in the series sees Shamus and Maria go on holiday to France. Along the way even more new friends are made. Silver Turner-Broom falls for a Cairns Terrier by the name of Bobby McTavish, his companion Lindy Antionette Blondeau falls for Harold Turner-Broom. This will lead nicely into book 3, that we will leave for now. Paris is a place of exquisite beauty, here Shamus visits the Palace of Versailles, several doors are locked, the ever-inquisitive Shamus gets on Maria's nerves asking all sorts of questions. It is not long after that all of them meet up once more and head to...