Raccolta Zagor n°240

To help the runaway slave Samuel, Zagor goes against the mercenaries of the Isthmian Guard, vigilantes under the orders of the governor and led by Ross Mc Gunn, known as "El diablo yanqui". Mc Gunn is allied with the sinister Mendoza and is determined to recapture the black man who escaped from his plantations. Samuel is headed towards a community of ex-slaves, led by a mysterious white man who calls himself Captain Mission, hidden in the jungle of Panama. Zagor, who must also cross the isthmus, decides to accompany him. With them is the merchant of Scottish origin Cullen Scott, who guides them into the tangle of the forest, where the Guaymì Indians also nest. But Captain Mission is also of great interest to McGunn: the Yankee is in fact convinced that he has found the mythical "treasure of Lima" which has been rumored in the region for years... and Samuel could take him to his secret hideout!