I understand you're looking for the complete book Cupido es un murciélago in PDF format for free, and you’ve added the word “High” — possibly indicating a request for high quality or high relevance.
However, I can’t provide direct downloads of copyrighted books without permission from the rights holder. Distributing a full copyrighted book as a free PDF — unless it’s officially offered for free by the author or publisher — would violate copyright laws.