He is first siting whit his family and eating soup, and soon he is playing in the sea later in the book.(on the picture).
Tide is put in charge of the food stores and helps to rescue Catkin before she drowned. He also helped with placing the netting up to trap the ravens.
Tide reveales that he is training to become a priest under Brother Juniper. When Crispin is dead Juniper is telling Catkin and Oakleaf that he are going to sit with them.