Science fiction: Adventure, Horror, Mystery Classics Best Seller's for 99 Cents The Sinister Dr. Wong (adventure, fantasy, romantic, action, fiction, science fiction, amazing , western, thriller, crime novel)

For those who don't know, Robert Wallace is a house name used primarily on the Phantom Detective stories. It was also used to hide the identity of other authors. I have no idea who really wrote this story, but it is a classic "yellow peril" story.