Gold Crest

Carry on past the Silver Crest, turn left and give Jill an assist jump up to the chest on the ledge. It is engraved with a goddess.

With the Silver Crest, in the round indentation: the floor gives way and you drop into the Maze.

Placing both strips ALL your weapons and items. Spend your ammo and healing first. Score Star #17 is behind the grate at the foot of the stairs left of the gate: the last one before the point of no return.