They can hear traffic on Pinnacle Road, about 200 metres below.

'That's easy, then,' says Tara. 'Thanks Mrs Marx.'

'Thanaaa Mrs Maraaa,' murmurs Dudley.

'Oi. Look at this!' calls Hilary. 'A cave of logs!'

A big gum tree which has been hollowed at the base by fire has fallen over another fallen tree making a 'cave' measuring about 2 metres across with a tunnel at the back of it going another 2 metres or so.

Hilary disappears up the tunnel. 'Come back, Hilary!' yells Tommy Tompson. 'Who knows what hides up there.'