The later MISC@1 occupation , which occurred NUMBER@1 to NUMBER@2 years ago , left little but a child 's footprints , the charred remains of ancient hearths and carbon smoke stains from torches that lit the caves .

The only traces left of the later occupation during the MISC@1 include a child 's footprints , the charred remains of ancient hearths and carbon smoke stains from torches that lit the caves .
