The fourth book of the Race the Wild series brings the first leg of the Wild Life competition to a close. As the end draws near, Mari, from whose point of view this story is told, becomes more and more concerned that, though she knows a lot of scientific facts, her inability to keep up with her teammates physically will cost them their chance at victory. These books seem to improve as time goes on. The third book, Arctic Freeze, was the most exciting up to that point, and this one is equally as engaging. I still mostly skipped over all the scientific facts between the chapters because I found it distracting, but I was fully invested in Mari's problem of seeing herself as the weakest teammate, and I was as unsure of their fate as the team itself. The exploration of the African savanna is also really interesting, and kids who like animals will be invested in the story for the wildlife alone.