Pretty good, but couldn't get past the boss worm thing.
I guess you need a buff character indeed to power past it?
Viewing post in The Tree That Touched The Moon comments
Yes, when fighting the boss, you should come prepared. Try different combinations of spells. If you can (you have a healing spell or enough healing shards), don't head to the boss room as soon as you discover it, instead explore the rest of the level for more rewards.
A more specific hint about the worm boss (I put it behind ROT-13, because it could be considered a spoiler):
Gur svefg obff unf n zbir gung erfgberf 10 UC naq vapernfrf nggnpx cbjre (guvf nggnpx obahf fgnpxf hc), ohg vg jvyy bayl hfr vg jura vgf UC vf ybj. Fb gel gb hfr ohss/qrohss fcryyf svefg, naq jura gur jbez'f UC vf ybj, sbphf ba nggnpxvat. Be qba'g pnfg ohssf/qrohssf ng nyy naq gel gb birecbjre gur obff dhvpxyl, cersrenoyl jvgu jngre fcryyf gb juvpu vg unf n jrnxarff.