From 11:00PM PDT on Friday, July 1 until 5:00AM PDT on Saturday, July 2, the Shmoop engineering elves will be making tweaks and improvements to the site. That means Shmoop will be unavailable for use during that time. Thanks for your patience!
Hermes is Percy's owl, a gift from Mr. and Mrs. Weasley when Percy made prefect at Hogwarts. Percy has been using him a lot. Later, we discover that he's been sending love letters to Penelope Clearwater, a Ravenclaw prefect.