Final answer:
Saul's age when returning to Manituage depends on the specific work of literature. In 'Indian Horse', Saul is in his 30s when he narrates his story from a treatment center, but the narrative includes many flashbacks.
Step-by-step explanation:
The age of Saul when he comes back to Manituage is not specified in a general context as it depends on the particular work of literature or text being referred to. If you are referring to the book 'Indian Horse' by Richard Wagamese, Saul is in his 30s when he tells his story from the present-day perspective of being in a treatment center. However, throughout the book, there are multiple flashbacks to different points in his life, so the age when he "comes back" could vary depending on the specific part of the narrative you're referencing.