There have been a lot more Indiana Jones games than Lucasarts fans remember.

Since you’re playing this game, you’re clearly not one to back down from an adventure.

See our guidefor help getting inside the Post Office.

a close-up side view of sister catherine bennett in indiana jones and the great circle.

Where Is Sister Catherine?

Sister Catherine is in theSistine Chapel, on the southern edge of the Vatican map.

The easiest way to get there is via theBorgia Courtyardsto the west or bycutting through the Apostolic Palace.

A collage showing three different games featuring Indiana Jones.

You’ll need touse the Clerical Keyand your priest disguise to get inside.

He’llgive you the Sewer Keyat this point, and you cantake Ventura’s Letterfrom Antonio’s desk.

There may be aguard across the channel on the far side, so enter with caution.

side view of sister catherine bennett in indiana jones and the great circle.

From there, you canuse your whipto swing across to the other side and continue your ascent.

Crescenzo’s Journal isin a lockbox immediately to your rightupon entering the Storeroom.

Bring Crescenzo’s Journal to Sister Catherine for225 Adventure PointsandThe Mad Priest Achievement/Trophy.

Indiana Jones swings toward a bridge, Indiana Jones tries to save Mac, Indiana Jones fights a Nazi on a tank

Indiana Jones Wombat stands on the street, Short Round rides an elephant, Else stands by the water

Triple-A Games

Indiana Jones and the Great Circle