We'de have to get in and get out the hard way; and if we made a mistake, there was no telling what sort of curse we'de unleash: monster guardians, plagues, fires, exploding donkeys(don't laugh; they're bad news).
Rick RiordanLeo Valdez deserved a special punishment," she [Khione] said. "I have sent him to a place from which he can never return.
Rick Riordan