HELENA, Mont. — "Three Cups of Tea" author Greg Mortenson and his publisher are asking a federal judge to dismiss a lawsuit that claims he fabricated parts of the best-selling book.

The lawsuit accuses Mortenson, Penguin Group, his co-author and his charity of conspiring to trick readers into buying Mortenson's books and donating to the Central Asia Institute.

Attorneys for Mortenson and the other defendants will ask U.S. District Judge Sam Haddon to dismiss their claims in a Wednesday hearing. They say the four people who filed the lawsuit can't prove they suffered any injury and their lawsuit would dampen free speech

The plaintiffs claim Mortenson lied in his books about deciding to build schools in Central Asia after stumbling upon a poor Pakistani village during a failed mountaineering expedition.