Remy. Triplets on the River, #3

When Natalie and Charles' father goes to prison, and their mother commits suicide as a result, the siblings find themselves penniless and homeless, two rich city kids looking for distant family in the river delta. Their first stop on the river leads them to a guide, a young man Natalie's age who travels with a cat, knows everything about the river, and won't give them the first clue about his life or his past. After weeks of searching doesn't turn up their missing aunt, Natalie and Charles decide they need to learn the skills of river life, from trapping to trading to guiding a raft.
As he teaches them, the mysterious Remy gets sick, and he has no choice but to take them to his home, where they discover just how much he's hidden from them. A big family with triplet brothers, Remy's people are thrilled and yet furious with the return their missing brother, and Natalie tries to help the family walk through their feelings, including the tragedy that sent Remy away in the first place.
While she falls in love with the triplet, his family helps them continue their search for her family. Now, though, Natalie is torn between biological family she's never met and a family of the heart that has pulled her in. Remy is the third and final installment of the Triplets on the River, books about life on a lazy river delta. Grow up, fall in love, and avoid alligators.