https://www.amazon.com/dp/B084Q6BHWN
Terry is worried about Lina's whereabouts and in the meantime tries to keep himself occupied by categorizing Marlin's size as she has moved well beyond any traditional measuring system. Diane plays coy with her actions and her motivations even though Marlin continues to impress with her abilities and rate of growth. Terry finally catches up with Lina in an unexpected way with help from someone else.
This is the ninth of a series.