Quote Originally Posted by Wylf View Post
That section (of Recover the Lost Tome) can be hard, but in case you don't know (because it sounds like you were just eating the hits), the lightning only hits in the middle of the hallway.
No, sorry, but you're wrong. You can also take damage while on the wall side of a rune. Gotta be fast to be safe. Several times I've taken big electric damage while I felt I should have been "safe", and either got interrupted or even killed (not (yet) on HCL) while deactivating a run on the side of the run away from the center.

As an fyi, you can also take damage while in one of the "in-between" stretches, after deactivating the last rune and waiting to time the next (gotta be further back than half-way in one of those stretches).