Dees stun the home side as the Crows left stunned heading into their bye game.
The Melbourne Demons secured a shock result on Saturday, beating the Crows by three points at Adelaide Oval.
The Crows will be licking their wounds heading into a bye following the 11.4 (70) to 9.13 (67) result.
The Demons looked the business after leading the first quarter by 17 points, before kicking on with three goals before half-time to lead by 28.
The Crows dented the lead somewhat with three goals in the third quarter, and looked to surge in time for a comeback with two more six-pointers in the final period.
But a pressure mark to the long-armed Mark Jamar proved crucial as he kicked a Demons major with six minutes left to play.
Dom Tyson then goaled with the outside of the boot in a bid to kill off the Crows’ hopes of a comeback, only for Jared Petrenko to respond with a goal a minute later.
A kick out on the full and a James Podisadly goal with 20 seconds to go made for a very nervy finish for Demons fans, but the underdogs had done enough to secure a big win.