Tomb Raider II: Golden Mask (North American title: Tomb Raider II Gold) is an expanded version of Tomb Raider II released in 1999 for Windows and Macintosh. The game comprises the scenarios of the original game with the addition of five new bonus levels in a separate mini-adventure entitled the "Golden Mask". Unlike the other two expanded games however, this contains no story ties to its corresponding game from the main Tomb Raider series: its plot is completely unique. The story involves Lara Croft coming across some clues referring to a small island in the Bering Sea: a faded photograph showing an Inuit whale hunter holding what looks like an ancient Golden Mask, an old newspaper from 1945 referring to a conflict over an Alaskan gold discovery, and a secret kind of fortified military mine base. Lara is primarily interested in finding the Mask, as it is rumoured to be the famed Golden Mask of Tornarsuk - a greater spirit said to bestow powers of re-animation on the mask wearer. Lara arrives to the island via a helicopter, but finds a mercenary treasure hunters , the A.V.A.L.A.N.C.H.E. already there looking for the lost gold. Moving more inland Lara discovers old abandoned Russian government mine. The mine seems to be abandoned quickly. Deep in the mine Lara discovers the remains of the miners, and foreboding cave paintings. The mine had been built above an ancient Inuit settlement - a warren of cave dwellings, sacrificial chambers and furnaces. The mine also hides a lush tropical valley, hidden from the world for thousands of years. Ancient technology has been used to keep the heat and light pouring into this mysterious chasm.