YOU SAID:
They died in the fire because the fire was too hot last night in a fire
INTO JAPANESE
彼らは火の中で昨夜は火があまりにも暑かったので彼らは火の中で死んだ
BACK INTO ENGLISH
They died in the fire as they were too hot last night in the fire
INTO JAPANESE
彼らは火の中で最後の夜は暑すぎて死んでしまった
BACK INTO ENGLISH
They died too hot in the last night in the fire
INTO JAPANESE
彼らは火の中で最後の夜にあまりにも暑く死んだ
BACK INTO ENGLISH
They died too hotly on the last night in the fire
INTO JAPANESE
彼らは火の中の最後の夜にあまりにも熱く死んだ
BACK INTO ENGLISH
They died too hotly on the last night in the fire
That didn't even make that much sense in English.