Original sentence: Alex was being held captive for his identity had been discovered.In order to escape, he used one of his gadgets provided before his mission.Nadia Vole managed to talk to Alex during this time.She appears in the first book of the series, Stormbreaker.She led Alex upstairs in the house, but she then paused for a moment on a landing by a statue nearby.The gadget burned the metal supports forcing the tank to collapse.There was no escape from the underwater container, and a jellyfish inside, known as the Portuguese Man O' War, was certain to kill him.Vole explained to him that she had been working with the MI6 and was willing to help him.When he gets up to look around he finds Nadia Vole being smothered by the jellyfish, which was also released from the tank
Edited sentence: Alex was being held captive as his identity had been discovered.Luckily he used one of his gadgets that he was first given to escape.Nadia Vole meets her fate towards the end of the book.Nadia Vole snuck in and explained to him that she had been working with Ian Rider and was willing to help him.She appears in the first book of the series, stormbreaker.She lead Alex upstairs, but then paused for a moment on a landing near a statue.There was no escape from this underwater prison and the beast within was certain to kill him within a few hours.When he gets up to look around he finds Nadia Vole being smothered by the beast, which also was released from the tank