But within seconds of his arrival, a kid came out, oblivious to what was going on at first, but letting out a startled yelp when he saw the extraterrestrial. The alien calmly caught the open door with one of its limbs — it used six of them for walking, and two adjacent ones as arms — and managed to squeeze through into the vestibule. A second wall of glass doors faced him a short distance ahead; this air-lock-like gap helped the museum control its interior temperature. Now savvy in the ways of terrestrial doors, the alien pulled one of the inner ones open and then scuttled into the Rotunda, the museum’s large, octagonal lobby; it was such a symbol of the ROM that our quarterly members magazine was called Rotunda in its honor.

On the left side of the Rotunda was the Garfield Weston Exhibition Hall, used for special displays; it currently housed the Burgess Shale show I’d helped put together. The world’s two best collections of Burgess Shale fossils were here at the ROM and at the Smithsonian; neither institution normally had them out for the public to see, though. I’d arranged for a temporary pooling of both collections to be exhibited first here, then in Washington.

The wing of the museum to the right of the Rotunda used to contain our late, lamented Geology Gallery, but it now held gift shops and a Druxy’s deli — one of many sacrifices the ROM had made under Christine Dorati’s administration to becoming an “attraction.”

Anyway, the creature moved quickly to the far side of the Rotunda, in between the admissions desk and the membership-services counter. Now, I didn’t see this part firsthand, either, but the whole thing was recorded by a security camera, which is good because no one would have believed it otherwise. The alien sidled up to the blue-blazered security officer — Raghubir, a grizzled but genial Sikh who’d been with the ROM forever — and said, in perfect English, “Excuse me. I would like to see a paleontologist.”