Are you ready for an unforgettable adventure? Look no further than CIUDAD NEGRA, the thrilling sequel to the international bestseller LA ÚLTIMA CRIPTA.

This gripping novel takes you on a perilous journey into the heart of the unknown, where nothing is as it seems and danger lurks around every corner. Join Ulises, Cassandra, and Professor Castillo as they embark on a desperate search for a missing loved one, only to find themselves in the midst of an impossible quest.

With each step, the line between reality and madness blurs, and the fate of their expedition hangs precariously in the balance. Will they uncover the secrets of the legendary CIUDAD NEGRA? Or will they succumb to the dangers that lurk within its walls? Dive into this gripping tale of adventure, mystery, and suspense, and discover the shocking truth for yourself.

Don't miss out on this unforgettable journey - get your copy of CIUDAD NEGRA today!