A Friendly Warning

'DON'T GO INTO WORK TOMORROW' the text read. Lucas went to bed that night extremely anxious. Who was the message from?
Despite himself, he phoned in sick the next day. He sat at home, thinking about the text.

Enough.

He drove into town and parked up a street away from his office. Minutes passed, hours.

A man in a bowler hat walked past, turned to face Lucas and doffed his hat. Seconds later, Lucas screamed as a deafening explosion shook his car. He looked up slowly at the remains of his office, shaking his head and murmuring 'no, no, no...'