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Level 13 - AGOATCL
The answer to this puzzle is:
Words: CATALO, OCTAL, GLOAT, COALA, ALGA, ACTA, TOGA, LOCA, TALC, GAOL, TALA, CALO, GALA, CLAG, CLOG, ALTO, LAC, LOG, ACT, COT, GOT, ALT, LAG, CAT, COG, LAT, COL, GAT
Bonus words:
CATALO, OCTAL, GLOAT, COALA, ALGA, ACTA, TOGA, LOCA, TALC, GAOL, TALA, CALO, GALA, CLAG, CLOG, ALTO, LAC, LOG, ACT, COT, GOT, ALT, LAG, CAT, COG, LAT, COL, GAT