A creature you touch becomes invisible until the spell ends. Anything the target is wearing or carrying is Invisible as long as it is on the target's person. The spell ends for a target that attacks or casts a spell.
At Higher Levels: When you cast this spell using a spell slot of 3rd Level or higher, you can target one additional creature for each slot level above 2nd.
You implant a Message within an object in range, that is uttered when a trigger condition is met. Choose an object that you can see and that isn't being worn or carried by another creature. Then speak the Message, which must be 25 words or less, though it can be delivered over as long as 10 minutes. Determine the circumstance that will trigger the spell to deliver your Message.
When that circumstance occurs, a Magical mouth appears on the object and recites the Message in your voice and at the same volume you spoke. When you cast this spell, you can have the spell end after it delivers its Message, or it can remain and repeats its Message whenever the trigger occurs.
The triggering circumstance can be as general or as detailed as you like, though it must be based on visual or audible Conditions that occur within 30 feet of the object.