Complex sentence: While waiting on the test results, they accidentally run into the manumitted clones of the dead prince; to protect their secret, the two surviving clones take Ron and George prisoner, until the trailing Raffaele tracks them down.
Split into simpler sentences: While waiting on the test results, they accidentally run into the manumitted clones of the dead prince. To protect their secret the two surviving clones take Ron and George prisoner, until the trailing Raffaele tracks them down.