1 Book Found

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"Looking for a Spanish-language adventure novel I read around 1998 in Mexico. Paperback, about 13 × 20 cm. Around 150 pages. It did not advertise itself as a gamebook. The story followed a named protagonist. At certain moments it said something like "If you decide to..., turn to page..." The cover was predominantly yellow. It showed a full-body African elephant with huge tusks walking directly toward the viewer, with dense jungle behind it. It was not a children's picture book."