Lapis put up a poll for her viewers on stream of what Miles' costume should be for Halloween. The options were some pretty boring things, like a vampire, werewolf, superhero, and so on. All the fans in the chat started spamming "He should be a mummy!" which Lapis accepted as valid votes. With all the votes tallied up, the only thing left to do was get Miles to come over on Halloween so Lapis could get him in costume.
Miles arrived at Lapis' house, ready to go Trick-or-Treating, only to find she had set up a stream and had a bunch of bandages lying all over the ground. Lapis told Miles she was going to dress him up like a mummy. Miles allowed this and Lapis started wrapping bandages around his arms and legs. Miles should've been paying better attention, because Lapis started wrapping bandages over his arms and body, too. Miles' legs were wrapped together and his arms were stuck to his sides. Miles was caught off guard by the bandages Lapis wound over his mouth which stopped him from complaining.
By the time Lapis was done her quick and amateur wrapping, Miles was completely concealed beneath many layers of cloth. The only thing left exposed were his feet because Lapis ran out of bandages. At least the rest of him looked like a real mummy.
Lapis stood Miles up-right so he could start hopping after her out the door so they could go Trick-or-Treating. She was annoyed when Miles didn't move and just remained up-right and rigid. Turns out, those bandages become very stiff when layered on top of each other, so Miles couldn't move. The only part of him that could move were his feet, which kept shifting back and forth on the ground to maintain his balance.
Lapis was hurt and thought Miles didn't want to go Trick-or-Treating with her. Out of frustration, Lapis gave Miles a little push and the boy fell onto his back with a thud. As Lapis left the house, she turned back to see Miles still lying there with his feet flapping back and forth. Lapis saw this as Miles waving goodbye.
Miles didn't get to go Trick-or-Treating, but Lapis did share her candy with him.
