That's a rather dull name, isn't it? The Explorer.

Something else is off. Here's the inevitable description of the interior.

The trimmings and fitting of the boat were superb.

From the pilot-house theey descended into the cabin.

This was a long compartment elegantly furnished the finest of appointments.

Staterooms adjoined and electric lights were upon every hand.

It seems a bit rote. There's no mention of Pomp's galley. At the end of the book, the Explorer is "stored away to be used upon some future occasion."

I have a theory: these are reprints with color covers. This is Frank Reade Jr.'s story from the top.