A family visiting a P.E.I. campground on the weekend headed home to Nova Scotia with heavy hearts after witnessing a fatal fire early Sunday morning.

Ian Kerr and his extended family were staying at the Green Gables Bungalow Court Cottages in Cavendish when a neighbouring cottage caught fire.

One person died and three others were injured, one seriously.

Kerr said he got a "frantic" knock on the door shortly after 6 a.m. from someone telling them to evacuate because the building behind them was eng…