I've just finished a book (Bloodstain) about a disappearance/probable homicide in the Outback, and can't figure out a word. The police searched a suspect's "ute" (obviously SUV/pickup truck) and found camping equipment, including an "eska". What's that? There's an Eska outboard motor, but would a guy without a boat need that in the Alice Springs area? There's also an Eska snowblower and Eska spring water from Canada, but they seem even more improbable.