“For one thing, the hole was cut with an under-water cutting torch. For the second, look here.”
The Doctor rolled up his trousers and showed the detective his leg. Carnes cried out as he saw huge purple welts on it.
“What caused that?” he cried.
“As I entered the vault, I stepped full into a steel bear trap which was set there for the purpose of catching and holding anyone who entered. Someone has visited the Arethusa, since she sank, and looted her, and also arranged so that any diver who got as far as the vault would never return to the surface to tell of it. Luckily for myself, I carried a heavy wrench and was able to free myself. Most divers don’t carry such a thing.”
“But who could have done it?”
“That’s what we have got to find out, and we aren’t going to do it down here. Give the word to have us hauled up; and, Carnes, don’t mention anything about the looting of the vessel. Allow it to be understood that I couldn’t get into the hold. We’ll head back for New York at once. I want to have a few small changes made in this sphere before we use it again. While I am doing that, I want you to get hold of the Coast Guard or the Immigration Service or whoever it is that has the 347 complete records in that case of alien smuggling, by the Young Labor party. When you get the information, report to me and we’ll go over it. You might also drop a hint to Captain Starley that will stop all further attempts at salvage operations for a few days. Tell him that I’ll arrange to have a Coast Guard cutter guard the locality of the wreck.”
“Won’t that be rather risky for the cutter?”
“I think not. The gold is gone and there is no reason to apprehend any further danger in that locality, at least for the present.”