At the end of the series finale of The Vampire Diaries on March 10, we saw Caroline opening a letter that included a hefty donation to the Salvatore Boarding School — and it was from none other than Klaus! And in the letter he wrote:
Dearest Caroline, I have often imagined the paths your life might take, but your chosen future is more noble than I ever fathomed. Please accept this contribution to your virtuous cause. I do look forward to thanking you in person someday… however long it takes. Yours, Klaus.