UPPER MACUNGIE, Pa., Jan. 19 (UPI) -- A woman who almost died from carbon monoxide that killed her husband at a hotel in Pennsylvania was recovering Saturday.

Katherine and Philip Prechtel, who had moved to Hilton Head Island in South Carolina, had returned to the Allentown area to attend their granddaughter's christening. They were staying at the Best Western Allentown Inn & Suites.

Liz McAdams of Bethlehem, Pa., mother-in-law of the Prechtels' son, told The Allentown Morning Call that Katherine Prechtel had been told of her husband's death. Lehigh Valley Hospital reported she was in stable condition.

"She's aware, she's aware of everyone, she's responding," McAdams said.

The christening, planned for Sunday, was put off.

Four other guests and five firefighters, police officers and ambulance crew members were sickened by the odorless, colorless gas. Investigators believe the carbon monoxide built up in the basement and on the first floor of the hotel because plastic tarps covering masonry work blocked hot water heaters from ventilating, the newspaper reported.