Finna
(Book)

When an elderly customer at a Swedish big box furniture store -- but not that one -- slips through a portal to another dimension, it's up to two minimum-wage employees to track her across the multiverse and protect their company's bottom line. Multi-dimensional swashbuckling would be hard enough, but those two unfortunate souls broke up a week ago. To find the missing granny, Ava and Jules will brave carnivorous furniture, swarms of identical furniture spokespeople, and the deep resentment simmering between them. Can friendship blossom from the ashes of their relationship? In infinite dimensions, all things are possible.