Five books where assassins are the good guys

Jeff Wheeler's latest novel is The Queen's Poisoner. At Tor.com he tagged five novels where assassins are the good guys, including:The Druid of Shannara by Terry Brooks

This book is one of my all-time favorite novels by Brooks and the reason is because of Pe Ell. This assassin works for the bad guys and the good guys simultaneously and it’s never clear exactly which he prefers. Truly, he’s on