I don't know if there are mom boards in your local area but I've seen things like this have been posted on mom's boards and the parents quickly located. There was usually enough information: something like 2 blonde kids (whatever identifying characteristics) age 5 and 2 who said their mom's name sounded like kiberty (whatever) and who were left alone in a play area for an hour. Babysitting was aged -- (so and so)...