Vizetelly, writing under the pseudonym J. Tyrwhitt Brooks, recalls an expedition to California he took between 1847-1848 . Originally, he planned to enlist as a surgeon for the US Army during the Mexican war, but conflicts had ended by the time he applied. In a quick change of plans, he joined a group of prospectors on their way to the newly found gold fields of California. While he might not find service in the military, his training as a physician made him a valuable addition to the ragtag team of explorers.

His training as a physician gives us an exacting perspective of the events and people who struck out from more sedate routines to prospect gold in the Californian wilderness....