In the Seek and Find book, children look for Sara and Simon, a girl and a boy like them; Felix and Estella, a teacher and his daughter; Lavan and Hoom, the two cats; and Gil the goat. Along the way the will meet some great saints: Saint Blandina of Lyon , Saint Genevieve of Paris , Saint Hildegard of Bingen , Saint Francis of Assisi , Saint Catherine of Siena , Francis Xavier of the Indies , Saint Vincent de Paul of Paris , Saint John Bosco of Turin , Saint Bernadette of Lourdes , Saint Damien of Molokai , Saint Charles de Foucauld of the Sahara , and Saint Teresa of Calcutta .