Ava is having a rough time: three days ago she and Jules broke up, and since then she's been avoiding them at their horrible mutual job at LitenVarld, a dystopian Ikea. Then a customer goes missing in a wormhole in spacetime, and Ava and Jules are chosen to try and retrieve the missing grandma. Very short, very fun. Written by a nonbinary author. I hope we get a sequel!

Addition in 2023: gave this a re-listen as an audiobook because yes there is a sequel now :D