Arrive at Harwood House.

Login to the OPG software.

Experience the time tremor, in the Attic.

Complete Nigel's Saxton Map in the Boys Dorm.

Relive Thomas Harding's 'reverie'.

Make the Dark Fall sigil, in Science Lab.

Find Steve's 'alternate' Oxford Ghosts book.

Get access to Upstairs, Main Hall, by progressing.

Solve the Playground EVP sequence and witness the Pink Door.

Open the metal grate to enter underground.

Find Steve's secret stash and print-outs.

Finish the Greenhouse Seeds puzzle.

Present Louisa with the wrong meal.

Read the runes, defeat the Dark Fall. Good Ending.

Get killed by the Dark Fall. Bad ending.

Make the Dark Fall send you to Saxton. Saxton ending.