When our two kids were little and we first took them out trick or treating, I recall sensing the ghosts of my own childhood Halloween memories bubbling up in the witches’ cauldron of my mind. Carving pumpkins into grinning, candle-gleaming jack-o-lanterns. Navigating through spooky garlands of cobwebs to a neighbors door, shouts of “trick or treat!” and of course the pillow cases full of candy. But when our two kids grew up and went off to college, the magic of Halloween left as well.

At best we’d have a bowl of candy at the ready for the few kids who trekked to our far end of the street, or—when even less enthused—we’d leave the bowl on the steps. Sad!

That has changed.

Our four grandchildren have brought about the great rediscovering of Halloween. Like little bats swooping through the night, our grandchildren have dived into Halloween with total glee and brought us along for the ride.

This Halloween we tagged along with my son’s family. One granddaughter, age 3, was a bee, the 7-month-old a ladybug, and my son a beekeeper (complete with professional beekeeper’s hat and long leather gloves). For the bee, this was her first real Halloween experience, old enough to fully appreciate the three-headed Cerberus of costumes, candy and ghoulish decorations.

The night was cold but not freezing, and dark as only late October nights can feel after the brightness of summer has faded and knowing that winter is fast approaching.

Apparitions of fairies, Samurai warriors, vampires and Frankenstein monsters—and one parent in full Elvis Presley tight white leather with sequins garb repeating “Thank you very much”—appeared out of the dark, briefly illuminated by jittery flashlights.

Our grand girl bee buzzed up the steps of a house, apparently not scared by the bloody head of a monster in a bowl of Reese’s peanut butter cups, or a life-sized ghost wafting beneath a maple tree. We carried our youngest grand girl, our ladybug, who snuggled close and stared at all this with a look of wonder; she was at a loss for words, only partly because she didn’t know any yet.

After an hour the bee’s candy bag was filling up with M&Ms, Mars Bars, Three Musketeers, Charleston Chews, gummy bears, you name it. When I was a kid, I ate these treats by the bucket. As a grandpa, I avoided them. Devouring candy was not part of the diet plan and I imagined my yoga and swimming workouts of the previous week evaporating in a cloud of white sugar.

And then a curious thing happened.

We walked up to one of the last spooky houses we saw that evening, the bee rang the bell and shouted “trick or treat!” and a mom held out a basket of candy.

But not just any candy. They were Snickers. I took one.

Later that night, with unhurried deliberation, I unwrapped the fun-sized Snickers and ate it. This was no ordinary Snickers. Its caramel peanut chocolaty goodness was the most delicious thing I’d ever eaten in my entire life. All my past Halloweens and the entire vast volume of candy I consumed as a child were condensed into that one little Snickers bar. In that moment, I grew bee wings of my own and rose off the ground, hovering, before slowly and with some reluctance returning to earth.