"Anything?" you ask.
"Yes, one wish for anything!" she smiled seeing the greed in your eyes.
"Um, I wish I had a genie slave that would grant me unlimited wishes!" you answer craftily.
"Wha--? Hmmm, a genie, don't normally traffick with their sort. All smoky as such, still it's a fair wish. And ah, yes as easy to grant as a wish for you to go to ancient Baghdad!" she pointed and laughed.
The sunlight was blinding and so hot suddenly, you can practically feel your naked skin burning. You lose your footing, and slide down a sandy slope right into a cave mouth.
You scream, the leprechaun laughs. She says, "You should have worn natural fibers, you can only send things back in time that existed then. You'd be surprised how many people who want to see a real live baby dinosaur and are horrified to find that the closest thing to a human was a tiny shrew like creature. The baby dinosaurs usually eat them up. Specificity is important when you wish. It's easier to take the man to mountain than the mountain to the man. I should warn you the genie is hidden in that cave of wonders all you have to do is find it. Being magic myself I can't enter or I'd be trapped there too.
You drop down from the ledge and see torches magically light the corridor ahead of you. It's nice and cool in the cave, and you start to walk toward the lighted hall, and trip on something hard and round.
Maybe this won't be so easy, you think holding a human skull in your hand weighing it thoughtfully. Still unlimited wishes are worth some risk!