For Ambrose and his mouse family, Christmas at the cathedral means pews full of worshipers who may need the help of the mice. This Christmas, Ambrose knows it is his turn to help-but how? The new princess is unhappy and might depart, leaving the church, the convent, and the poor who so badly need her charity and kindness. With encouragement from his mouse family, Ambrose sets out to help the princess. The princess' world seems enormous to a small mouse, but perhaps it will take someone tiny to notice the one thing that will make the princess happy. Will Ambrose's bravery and desire to help be large enough to make a difference? With colorful, detailed illustrations by Katalin Szegedi, this story will invite children into Ambrose's world, and fascinate them with the medieval church. Children will sympathize with Ambrose's worries, cheer with his successes, and be inspired by his persistence. Children 4-10, schools, libraries, and people of all ages will keep this book nearby and visit Ambrose and his cathedral family again and again.