Hey wow! Thank you so much for your feedback! I'd love to hear how the adventure went beat by beat. What path did they ultimately take?
In regards to the Staff of Olzagrasst, the real one is located in the Childhood Home Illusion, and the staff broken in the Sorcerwood could be from another wizard who fell pray to the tree, Olzagrasst's walking stick, or anything else that would feel fitting. A party that did not access the childhood home illusion might conclude that the broken staff was in fact the storied staff of Olzagrasst only to leave the true staff behind.
I wanted the party who did find the real staff to feel they really achieved something by providing a red herring for those aware of the staff at all.