....6 y/o player?

These shenanigans are exactly why most spells with an otherwise-unlimited range are limited to their plane of existence.

Good loophole, would also allow it, RAW it should in fact work, although depending on the afterlife in question it may not produce a useful result, the person might be a lemure with no memories or something similar, depending on how long they've been dead.

If they're the DM isn't it THEIR job to show things?

Isn't Speak With Dead going to be easier to cast?

If only Calvin had played D&D

Don't let that cheeky squirt forget the 5% chance the message fails to arrive