Are these sentences worded in the correct way?

Shedara made her way to the statue, but triggered a very powerful trap, a Gray Lotus, and its pollen dust instantly put her to sleep. Shedara was captured and imprisoned, but she was soon freed by the lord of the keep, the human warrior Barreth Forlo, and accompanied him on his travels while he prepared to battle the hordes of Uigan tribesmen who were preparing to cross the Tiderun Strait.