Police are hunting an offender who may have been treated for countless bee stings after more than 1,000 of the insects were killed in an attack on their hives.
The vandal scattered nine hives at Bodelwyddan Castle, North Wales, and damaged their frames, causing its entire stock of bees to be destroyed, police said.
The incident is believed to have happened in the castle's orchard between midday on Tuesday April 9 and midday on Thursday.
A spokesman for North Wales Police (NWP) said: "An appeal for information is being made after nine beehives were damaged and the bees killed in Bodelwyddan.
"Over 1,000 bees were disturbed and the entire stock of bees killed after an offender or offenders damaged hives at the Bodelwyddan Castle orchard.
"The offender or offenders scattered the hives around the location and damaged the frames.
"They would have suffered bee stings as a result of disturbing the bees."
Anyone with information should call NWP's Investigation Support Team on 101 or Crimestoppers on 0800 555 111.