Banksy or no Banksy, our elusive graffiti artist has once again made his mark on Yale’s campus.

His target this time? The storied and imposing Skull and Bones tomb.

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The tomb’s portico now reads “Believe in People,” a variation on the artist’s name on Twitter. The mystery man live-tweeted the event in 11 consecutive tweets from his iPhone beginning at 5:20 a.m.

A later tweet from 5:42 a.m. reads, “At front door. Open sesame.”

This time, though, the stenciling is less ambitious — the tag kind of looks like three stickers someone with a ladder and lots of willpower managed to paste on the tomb’s façade.

The same artist has previously tagged the wall near Mory’s, a wall and door on Hillhouse Avenue near Dunham Lab, and William L. Harkness Hall.

UPDATE: 8:19 p.m.

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But wait, there are more! And a video.