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Time has passed for Inspector Clara Valentín. Now, married and with a small child, she has to juggle her work in the police force with her family responsibilities. But a new case, which at the beginning seems routine, will turn into something extraordinary: a series of murders which have a strange and surprising factor in common, and which require all her ingenuity to solve.
In this fifth novel by Mercedes Aguirre, the allusion of the myth of the Lernaean Hydra becomes a metaphor which shows how events that happen today can find their meaning in the past.