The embattled author of ‘Three Cups of Tea’ has undergone open-heart surgery nearly two months after reports questioned the accuracy of the book and whether he benefited from the charity he founded, the charity’s spokeswoman said. Doctors discovered an aneurysm, in addition to a hole, in Greg Mortenson’s heart that had left him with low oxygen levels, Central Asia Institute acting director Anne Beyersdorfer said. Surgeons repaired the hole and tied down the aneurysm, she added. “We feel very fortunate it did not burst or throw a clot,” Beyersdorfer said. She told that the operation took place last week but she declined to say where it was performed or where Mortenson was recuperating. She said he is expected to eventually return to his Bozeman home for a recovery that could take weeks or months. Mortenson entered a Bozeman hospital after reports surfaced in April alleged he lied about events in his best-selling book. The reports from ‘60 Minutes’ and author Jon Krakauer also questioned whether Mortenson financially benefited from the institute and whether CAI built the number of schools it claimed. Last month, two Montana lawmakers filed a lawsuit against Mortenson, claiming they were duped into buying the book and donating to his charity based on lies.