Luckily, two fellow Heath walkers spotted the lost dog and took the forlorn pet to Battersea Dogs Home, who used Spike’s microchip to reunite him with his owner the following day.
Mr Woolnough said: “He probably looked quite vulnerable.
“He used to be able to find his way across London. Once, he was waiting for me outside the Whittington hospital in Highgate and managed to find his way back to our home in Crouch End.
“But I was more worried this time because he was getting old.”
He added: “There are a lot of concerned dog owners on the Heath – they act like a real community.
“I am really grateful to the walkers for finding him, I was so relieved when I was reunited with Spike.”