This is book 3 in the Mike & Alex series. They were "born" in the Netherlands in 2015. Thanks to good food from the farm, they become the largest animals in the forest and thus leaders in actions against animal unkindness of people. That has become the theme in the series. Now they are brought to the coast in Normandy by a French rabbit. Mike and Alex are world famous among the animals. Lowie Vos (book 1) and father Matt Dol-Phin have made sure of that. They meet every third full moon on and at the southern pier of the Rotterdam harbor and tell all the interesting facts to each other and further. Now Matt takes Mike and Alex with his family to the sick whale Wally. He is being made better. As a thank you, he invites our friends for a world trip by whale. That is an unexpected luxury. Curious?