Mark and Sarah van der Merwe think they may have escaped the attention of the ivory smugglers they faced in the past while saving the elephants in Kruger National Park. However, now fighting depression and isolation, the backslidden couple ventures back to the place that caused their greatest grief in order to find closure for their current pain. Little do they know that evil raises its head once more and uses a lost little Zulu boy as bait. Will they show him the way to God, or will they end up in more trouble than they can possibly handle on their own?? Mark's Strength is the second book of Skye Wieland's Dare to Follow trilogy about a group of friends who find God and themselves in the midst of adventure, danger, and amazing vistas.