DOVER-FOXCROFT, Maine — Foxcroft Academy is returning to in-person instruction on Thursday following a threat earlier in the week that prompted a remote learning day Wednesday. “After a careful and thorough investigation in conjunction with the Dover-Foxcroft Police Department on Wednesday, May 18, the threatening comments made against the school on Tuesday, May 17, appear to have no validity,” Head of School Arnold Shorey said in a statement Wednesday afternoon. The announcement to switch to remote classes came a day before a walkout and peaceful protest were planned in response to news about two students accused of sexually assaulting a classmate in February. Last week, a district court judge decided the 17-year-old from Dover-Foxcroft and the 16-year-old from Charleston may attend classes in person, though they are to have no contact with the victim and witnesses.