It's possible (and you're probably missing a new mechanic). Rot13 hints with increasing spoilery:
1.) Gurer'f zber crbcyr guna qrfgvangvba fybgf.
2.) Lbh pna fbzrubj pneel gjb cnffratref.
3.) Gel ehaavat bire n cnffratre.
4.) Lbh arrq gb pneel 2 cnffratref jura tbvat haqre gur fybgf.
Cheers!