*The Tenth Doctor meets the constantly curious Charles Darwin in the second of three brand-new novellas starring inspiring characters from history.*

Some discoveries should never be made...

When Charles Darwin takes a break from a long sea voyage to look for shells on the Galapagos Islands, he finds two things that really shouldn't be there. The first is a sunbathing Doctor. The second is a fresh Silurian skull . . .

When more Silurians are discovered by Darwin's crew - alive, this time - there is pandemonium. And when the island's volcano starts erupting, years ahead of schedule, it looks like all-out war.

The Doctor has his hands full. Can he keep Charles - and his evolutionary theory - alive?

The history of science is at stake.