In general, a good chapter with an excellent plot twist. The "acid trip" did seem a little disjointed and hard to follow, but from what I have heard, bad trips are like that!
You did a good job of leaving this reader with a "WTF is going on?"
Ero Sennin following the team makes perfect sense. Tsunade is a bit of a stretch given her position and sense of responsibility. But I can see it go either way!
All in all, another fine chapter!
The "trip" was hard to write seeing as I've never had a psycotic episode and didn't know really how to approach it. ;) But I gave it my best.
Thanks for the feedback on the rest! I really appreciate it!