This spell affects a fire already burning, causing it to burn much more efficiently. As a result, visible light emitted by the fire is reduced by 90%, and the fuel burns 25% longer. The heat given off by the fire is unaffected.
The fire affected by the spell may be no larger than SI cubic feet (MS) or SIx3 cubic feet (CS). The fire continues to spread normally, and any burning fuel outside this volume is unaffected by the spell.
(none)
Fatigue: (15 - SI)x2
Time: (15 - SI)x2 seconds
Range: ML feet
Duration: MS, SIx2 minutes; CS, ML minutes