A Dalek! This is for one of my very favourite books, the gentle, chaotic, loving My Family and Other Animals, Gerald Durrell’s autobiographical account of an erratic English family relocating to Corfu in the 1930s. (I have finally picked up a copy with the dust jacket shown at that link).
If you’re looking for an adaptation of it, there are several. I think the series are flawed because this is not a story which can be drawn out. All the urgency of it comes from knowing that the overlapping, unfraught episodic adventures must end at the back cover. For this, among many other, reasons, my favourite adaptation is the delightful 2005 BBC movie, which stars Imelda Staunton, Tamzin Merchant, Matthew Goode and Russell Tovey, et al.
(For more Daleks, see The Dalek Game.)