So I just beat the freaky mother-blob in the pits of hell, and I can't figure out what to do next. I've seriously been to every corner of this map available to me twice and found nothing. Everywhere eventually becomes blocked to me, either by holes I can't get over or objects I can't destroy or move. I've travelled through the lilypad rivers, made it to the chasm...both are eventually blocked by holes. I feel like I shouldn't be lost this early in the game and must be missing something obvious. This game has absolutely no signposting! I'm at a loss, what am I missing?
The third key is in the cave in the cliffs, from what I remember. Takes a bit of exploring, there are multiple entrances to the dungeon.
If you can't get over holes, you need the jump boots. You can get them in the lake area, by bringing Miao the cat to the Orange Fish guy north of the merchant. Then, bring the cardboard box to the merchant to get the shoes, bring the shoes to Mitra (girl with bike).
Didn't pick up on that from his message, good catch