405 Not Allowed [90% CERTIFIED]

"The library is right here," the clerk droned, pointing to the shelves of books behind him. "You’ve got the right place. But this is an . It is a read-only establishment. You can GET a book, you can HEAD a title, but you cannot POST a letter here. We simply don't allow that method of interaction." "But I have to leave this letter!" Eli insisted.

"I’d like to this letter into the library's collection," Eli said, sliding a sealed envelope toward the slot. 405 Not Allowed

Eli sighed, realizing his mistake. He had the right address, but he was trying to use an "enter" key on a door that only had a handle to "exit." He tucked his letter away and set off for the correct endpoint. "The library is right here," the clerk droned,