ISBN-13: 9781939961617 / Angielski / Miękka / 2017 / 30 str.
This story was inspired by a true event of animal heroism, in 2003, when 11 elephants rescued a herd of antelope that were held in a boma, within the Thula Thula game reserve in Africa. The elephant that led the real-life rescue is, indeed, named "Nana," and she skillfully unlatched the gate of the enclosure to release the antelope.