It was a very long day. The ascent from Temple-Ecrins Hut up to the top is more than 1000m. Normal track first, then you get on the snow to reach a long slope that leads to the top.
There is a nice variation if you take the short couloir on the left, right before the summit.
An easy route to discover the beauty of Massif des Ecrins.
"So I was sitting in my cubicle today, and I realized, ever since I started working, every single day of my life has been worse than the day before it. So that means that every single day that you see me, that's on the worst day of my life."
--Peter Gibbons (Office Space)