The Twin Dilemma is the 63rd volume in the Nancy Drew Stories series.

Andrew Conrad played Remus in the Doctor Who serial The Twin Dilemma.

This story takes place immediately after The Twin Dilemma.

Colin Baker makes his first full appearance as the Doctor in the final serial The Twin Dilemma.

The newly regenerated Sixth Doctor would also be seen wearing it during the first episode of his debut story, The Twin Dilemma (1984).

Baker then made his first full story debut the following week in The Twin Dilemma.

Maurice Denham previously portrayed Azmael in the serial The Twin Dilemma.

In 1984, he wrote the script for the Doctor Who story The Twin Dilemma.

The Twin Dilemma was released on VHS in May 1992.

This combined with the information from The Twin Dilemma reinforces the idea that the Valeyard is indeed the Doctor's thirteenth and last "normal" incarnation.