My favourite was the eponymous 'Allan Quatermain', the story of the return of Quatermain and Good to Africa, and the journey to Zu-Vendis, at the end of which Quatermain meets his death. Kept me awake for hours as a lad, reading by torchlight under the blankets! :-)

And apologies to all but, as a life-long pedant, I feel compelled to point out that it's not 'Quarermain', but 'Quatermain'.

Exit stage left, ducking and weaving........ LOL!