A thorough search of the area unfortunately doesn't throw up any useful clues, there are two sets of fresh footprints leading up to the water butts and away again, those going away leaving fainter impressions. But the trail only leads about ten yards from where you found the boy before they disappear abruptly.
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Andrec (and any of the party that accompany him) makes his way swiftly through the dirt streets, he looses his way only once when he finds himself in a closed courtyard, but after a few minutes he is back on track. Roughly fifteen minutes since the group found the unconscious child, Andrec walks up the overgrown path to the orphanage door.