“ Some parallel worlds have different time-flows, like the fabled dwelling-places of the elves: those who visit them under the hill for a night return to find that years have passed in this world. Perhaps it is the gate leading between the worlds which causes the alteration. If a gate were 'misaligned', the shift from '| |' to '| \' or '| /' as it were would lead to that difference, much as a light-beam split and bent by a prism ends up taking a longer path. There might even be a mathematical function linking degree of misalignment to alteration of time-rate.”
“ Faerie foods with unusual effects. Like faerie sausages that turn the eaters into wiener dogs, faerie wines that make the drinker whiny, etc. There's a table in Palladium Fantasy RPG which has a table of ideas.”
“ In Azur, the streets are crowded, and the PCs' poor grasp of Azuran makes it hard for them to find out why. Still, they shoulder their way through the crowds, trying to get to the house of the renowned wizard they seek, when suddenly they realise they are standing very much alone. The crowds have ceased their talking and their gazes are fixed on the PCs. The imperiously clothed man standing before them smiles and speaks in Azuran: 'Ah! Volunteers! And so eager too!'”