Can you create a noise using Minor Illusion/Thaumaturgy on an area you cannot see?

Just to make it more clear, let's say you are in a house and you know that there is a room on the other side of a wall. Can you create a sound on that other room? (You know that it exists and its dimensions)

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    – V2Blast
    Commented Jun 15, 2019 at 18:29

1 Answer 1


You require a clear path to the point of origin for your spells.

Both Thaumaturgy and Minor Illlusion target a point of origin for an area of effect (within your range).

You have to be able to target a specific point which requires a clear path, which you do not have because the wall provides total cover (unless there are holes in that wall or some other way that provides you with a clear path), but you can place the point of origin on your side of the wall:

Targets (PHB 204):

A typical spell requires you to pick one or more targets to be affected by the spell’s magic. A spell's description tells you whether the spell targets creatures, objects, or a point of origin for an area of effect (described below).

A Clear Path to the Target (PHB 204):

To target something, you must have a clear path to it, so it can’t be behind total cover. If you place an area of effect at a point that you can’t see and an obstruction, such as a wall, is between you and that point, the point of origin comes into being on the near side of that obstruction.


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