Ex-Cabinet minister Michael Gove and his wife Sarah Vine left their young son in a posh B&B for six hours while they attended a celebrity party.
The 48-year-old former Education Secretary booked into the exclusive No.38 The Park in Cheltenham on October 14.
Mr Gove reportedly told hotel workers at the £250-a-night B&B they were going out for a “short time” and would be back by around 9.00pm or 9.30pm.
However, a night porter later saw the 11-year-old “wandering the corridors” of the hotel.
A source allegedly told The Mirror: “When he spoke to him, the boy was asking where his parents were and when they would be back.
“After around an hour, Mr Gove and his wife had still not returned and the night porter became concerned, so he began phoning them. But the calls were either not answered or clicked off.
“They eventually arrived back at the hotel at 1.30AM – six hours after going out to their party.”
The party, which marked the end of the Cheltenham Literary Festival, was held a mile away at the Grade II-listed hotel, No.131.
The star-studded evening do was also attended by TV comic Dom Joly, who tweeted: “Amazing party at @131TheProm celebrating end of Chelt Lit Fest – only slightly ruined by the sight of the loathsome Michael Gove dancing.”
UK law on leaving children alone follows guidance from The National Society for the Prevention of Cruelty to Children (NSPCC) which states that “children under the age of 12 are rarely mature enough to be left alone for a long period of time.”
Their guidelines also say that children under 16 shouldn’t be left alone overnight, and babies, toddlers and very young children should never be left alone.
A spokesman for the Gove family said: “Michael and Sarah’s son is a mature and confident secondary school pupil. He preferred to watch TV rather than go out to dinner.
“He was perfectly fine and staff at the 13-room hotel were happy to supervise.
“The hotel where Michael, Sarah and their son were staying would know how to get in touch with them if anything distressing had occurred.”