Connect Minds

You can choose to send:
a) a message up to twenty-five words
b) an image of what your eyes can see that lasts for up to 5 seconds
to a creature with which you are familiar. The creature hears or sees the message in its mind, recognizes you as the sender if it knows you, and can answer in a like manner immediately. The spell enables creatures with Intelligence scores of at least 1 to understand the meaning of your message.

You can send the message across any distance and even to other planes of existence, but if the target is on a different plane than you, there is a 5 percent chance that the message doesn't arrive.