Written by Malcolm Shaw with art by John Richardson, the story revolves around Ann Summerton, who begins seeing visions of her dead father while travelling on the London Underground.

[1] Artist John Richardson rarely drew serials, but had worked extensively in British girls' comics since the 1960s, particularly with a series of covers for IPC's Tammy.

[5] After teenager Ann Somerton's father Andrew is killed during construction of the new Windsor Line for the London Underground, her mother Lilian receives a substantial amount of compensation.

Desperate to find more, she visits her father's old friend Mr. Carstairs, an expert on the Underground, and learns of the old Prince Albert line in the same place decades before, which was covered up after a tunnel collapsed.

Ann spots a photograph of Victorian industrialist Lord Vicary in a magazine, and recognises him as the ringleader in her visions, and - despite her mother's increasingly histrionic attempts to get her to stop her daughter's obsession - returns to the Windsor Line after speaking to Globe editor Franklin, who instigates a police search of the tunnel.

After a spell committed to Stapleton Clinic, Ann pretends there was nothing behind her visions, and requests a visit to Vicary Hall, now a stately home that allows guided tours.

She discovers Vicary conducted secretive botanical experiments and had a dim view of the growing worker's rights movement before disappearing in the Prince Albert Line disaster.