It's the final appearance of King Tut, and he makes a startling discovery that will rock Batman and Robin's socks. If they wear socks. Which isn't clear. But whatever, the Bat-rewatch declares that "I'll Be a Mummy's Uncle."
A fitting finale for the fake pharaoh, as Victor Buono remains his usual spectacular self, the plot is pretty straightforward Bat-stuff, and a good time is had by all. Batgirl is sadly underused in this one, though this time it’s mostly due to her not being able to know what’s at the end of the mineshaft.