The graded readers series of original fiction, adapted fiction and factbooks especially written for teenagers. Lucho and Eva are paired together for a History project. The first stage is to draw a 'Mind Map' of all their ideas. But Lucho's mind map has a mind of its own and starts to grow. The map leads Lucho and Eva on an adventure involving the ancient theft of gold in a lost city in the Colombian jungle. This paperback is in American English. Audio recordings of the text are available on our website at: www.cambridge.org/elt/discoveryreaders/ame