Why did percy think rachel could inside the labyrinth? n able to see through the mist. he had discovered that she was a half blooded and his half sister. she was one of the minos "golden children" she had found ariadne's string in the opening of a cavern at carisbad.

Because Rachel was able to see through the Mist.

Explanation:

The Battle of the labyrinth was written by Rick Riordan. The story tells of Annabeth Chase who leads her team in a quest to find the inventor of the infamous labyrinth when they discover its role in a dark plot against the camp by Kronos' Army. Kronos was recruiting monsters and half-bloods to a battle against the Olympian gods.

Percy and his gang got through the labyrinth at the end by the assistance of Rachel Elizabeth Dare, a mortal that could see through the mist. She was able to see clearly which way to go in the labyrinth. Percy, Annabeth and friends returned to the camp to inform and warn others.

Percy thinl Rachel could help inside the labyrinth because she was able to see through the mist.