Kobo Norfolk Island has got a number of Peter Temple's ebooks at very cheap prices:
Truth US $2.52
Black Tide US$1.38
The Broken Shore US$1.38
In the Evil Day US$1.38
Bad Debts US$1.38
Shooting Star US$1.38
White Dog US$1.38
and they're discountable
Get your voucher codes from the Kobo Discounts thread
PS Most of these cost AUD$17.09 from the Kobo Aus site