The job that Charles Darwin hired Henderson and his fellow sailors to do was not really in their interests; collecting samples for Darwin. But since they were being paid, Henderson and his colleagues accepted this task and left London in the HMS Beagle. During the journey, the sailors became bored of eating vegetable broth all of the time and desired to seek out some meat. For now, they would abandon the task they had been given. On arrival at Antarctica, the five men travel to the island in a smaller boat. They discover the tracks of a wolf and venture into some caves leading into the lost city of Tinnos, a Polynesian settlement. Carrying a lantern, Smythe discovers that the tracks have gone because the snow has run out. Henderson beckons him on and they travel across an ice bridge and into a dark cavern. There, they make a discovery. Four strangely carved artefacts. The sailors take these artefacts thinking about the money that they might be worth back in England. Suddenly, the creature that they were tracking appears and attacks Paul. Henderson, Smythe and Jonson flee back into the tunnel but Stephen stays to carry Paul's dying body. Henderson and the others beckon Stephen to hurry before the wolf comes back. As Stephen makes his way to where his colleagues are waiting on an ice bridge, the bridge collapses sending the sailors sliding through a tunnel and crashing through to the outdoors. Paul is dead. The four sailors bury his body and vow not to tell Darwin the truth about Paul's fate, or else they would be back on the strange island to hunt down the canine creature. The sailors leave, continuing their sample collecting across the world.
Continuing their sample collecting, the sailors travelled to other locations such as the South Pacific Islands, America and India. However, at each visited continent, one sailor met an untimely demise and the loss of their artefacts. It is unknown which artefact Henderson possessed and where he died. It could either be India or America. Only Stephen survived to return to England.