The original messages and writings are worthy of belief because the event was deemed so by the bishop of that diocese. However, later material was added about the antiChrist and all sorts of bizarre stuff that even today confuse those who study the apparitions. These false writings that pretended to be a part of the message is still, unfortunately, being propagated today.
DISCLAIMER: Catholic Answers has turned over the archive to Catholic-Questions.org and no longer owns, manages, or moderates the forums. For additional apologetics resources please visit www.catholic.com.