It's the most annoying of the daily delve quests for sure. You can make it easier though.
If you have a mate, just activate the written letters at the same time, works with more than 1 group member. Then it counts as more than 1 letter.
You can also cheese your way around the broken bridge by jumping at the cliffs to the right of the bridge, this way you can avoid that annoying cave passage.
Edited by Dracane on May 30, 2018 4:19PM
Auri-El is my lord,
Trinimac is my shield,
Magnus is my mind.
I can't get the last 2 when you kill the boss (spinner) there's a stone door you go through but I've tried it several times relogged restarted after 15 minutes all that zenimax automated rubbish we all know and try and to add to it all my character's are bugged that way so I can't reach them
There isn't a door you need to go through apart from to the cave that leads to the boss. If you go back through the cave and leave through the bottom entrance (or jump down off the cliff from where the boss is tho you'll probably die), then follow the area around, there's one on a ledge above the little lake near the delve entrance. Then carry on up the hill and the other is again on a little ledge on the cliff edge ahead to the right.
I found they were all really hard to find the first time too