Well, you're 21 days wiser, and a few kilos heavier. The food supply is running low. What appears to be a vulture circles slowly overhead. On closer inspection it's a magpie - attracted no doubt by your body odor. Personal hygiene is a problem - there is no shower aboard, and out here how is one supposed to keep clean?

All-in-all it's been a good trip. There were golden sunsets washed down with root beer, spectacular thundershowers with ripple chips on the side, and crisp summer mornings when the smell of pine needles and Oreo cookies nudged you awake. You've become quite accustomed to "roughing it". You still haven't found a place to plug in the micro-wave, and thus have no way of preparing the Spaghetti-O's.

Land - Ho! Well actually there's been land all along, but this looks like civilization. On closer inpection it turns out to be the Bunclody Bridge. You check you maps. It seems unlikely. Have you really travelled 15 kilometres? It seems like only the a few weeks ago you were setting out from the Souris dock, full of hopes and dreams.

It occurs to you that you have yet to make any discoveries or perform any scientific test. In fact you haven't left the canoe since you walked it over that last set of rapids. You pull in under the shade of a riverbank oak and scan the surroundings with an explorer's eye. Nothing unusal here, except for what looks like a manhole cover floating just above the waterline there in the shade of the overhanging willows on the far side. Nothing unusual except... alarm bells go off in your head. Something's not right here - it is a manhole cover. You watch in amazement as the lid lifts as if on a hinge - pushed up by what looks like a hand at the end of a plaid - shirted arm.

Instinct takes over as you and Bernie back paddle further into the shade.

As you do this, a man appears, followed by a second one. They step into the waist-deep river and wade to the shore where they disappear into the bush.

You face your next command decision.

There are rules about these things. As amateur detectives you must follow the men or examine the manhole. No, you can't just ignore them and look for some marshmallows for supper. You must act now without giving it a lot of thought. Follow the men....

...Or explore that manhole device. What could be in there?

Well, it's another tough choice!