He acts as a friend and mentor to Shankar Ray Choudhuri, and together they try to explore the deepest reaches of Richtersveld for the Mountain of the Moon.

The explorers set off, much against the villagers' advice, braved the dense jungle and hostile environment but met with disaster- for Carter was gruesomely killed, supposedly by the Bunyip.

Eventually, they get lost in the forests where Alvarez suffers death at the hands of a mysterious monster, the same that had taken Carter’s life, the Bunyip.

After returning from the Mountain of the Moon Shankar wrote an article for a local newspaper where he refers to the Ol Doinyo Lengai volcano as Mount.

In the film- Chander Pahar or Mountain of the Moon Alvarez's character is portrayed by South African actor Gérard Rudolf.