For the Pale God, he was just as concerned about this event as the other Deities, even though he didn't arrive on the scene to participate in the fire-stealing activity right away, but that was because he had other things to keep him busy.
For instance, when that green fire began to burn and was recorded by some Give-Up Mages and uploaded as videos to the internet, the vegetable-growing skeletons of the Pale World had already seen it.
They recognized the green flames at a glance, as it was the ability belonging solely to the vegetable thief who'd once fled their world, and with the Great Witch Ghoul having been dragged off to play video games, the Great Witch Ghoul who'd been forcibly logged off from the game also confirmed this, no doubt, the green fire was indeed that of the vegetable thief's.