Got curious when I just read the Gaze of Two Minds Invocation.

Let's say a Wizard is sitting down and currently using their flying familiar to scout. Now let's say a Warlock with Gaze of Two Minds decides to use it on the (willing) Wizard. Does the Warlock see through the Familiar's eyes or do they see through the Wizard's eyes (and is consequently blind)?

Here's some quotes so you don't need to go searching.

Find Familiar
While your familiar is within 100 feet of you, you can communicate with it telepathically. Additionally, as an action, you can see through your familiar's eyes and hear what it hears until the start of your next turn, gaining the benefits of any special senses that the familiar has. During this time, you are deaf and blind with regard to your own senses.

Gaze of Two Minds
You can use your action to touch a willing humanoid and perceive through its senses until the end of your next turn. As long as the creature is on the same plane of existence as you, you can use your action on subsequent turns to maintain this connection, extending the duration until the end of your next turn. While perceiving through the other creature’s senses, you benefit from any special senses possessed by that creature, and you are blinded and deafened to your own surroundings.

Good question! It's pretty straight-forward: Deafened & Blinded. The abilities don't daisy chain down the line.

Both abilities make clear that:

1. You only perceive what the targeted creature perceives with their senses
   • You do not gain their senses
2. Your senses are hindered while active

A Warlock warging into a Wizard perceives the Wizard's senses. If the Wizard is also warging into their familiar, then the senses which the Warlock perceives are that of the Deafened & Blinded Wizard, not the Wizard's familiar.

Yeah, I'd go with that. Also, it wouldn't seem very practical anyway even if the warlock could see what the familiar is seeing. It would be entirely passive as he couldn't tell the wizard to have the familiar do something since the wizard is deaf. So the wizard might as well just do his thing and then tell the warlock what he saw.

An interesting rules hypothetical. I think it is as sigred described.

I think the warlock would be able to see just fine out of the wizards eyes, as only the wizard is deafened and blinded to their own senses.

If it did work so that the warlock could see and hear what the wizards familiar experienced it would be useful for scouting, not everyone remembers the same details.

The Warlock could Gaze of Two Minds the Familiar before it goes scouting.