Eva

Eva is a major character in the Mystery at the Maya Ruins. She and her brother Miguel meet Christina and Grant and get into a mystery. They go to Chechen Itza and find more clues. And all four of them end up jumping into the Cenote Sagrado. They eventually succeed in getting the culprit arrested, getting back the giant whale shark Oliver, paying the ransom to get him back with fake stones, and throw the four jade stones they had found into the Yucatan Peninsula waters!