Nelly's monster sitting adventures are always full of surprises.

She certainly can't believe it when she sits a monster who wants to do absolutely nothing! Or when she has to rescue the smallest monster she's encountered yet - but nothing can prepare her for spending Christmas Day with the Dendrilegs!


Nelly is as busy as ever monster-sitting strange and unusual monster babies. With inviting Huffaluks to her birthday barbeque, struggling to frighten Muggots to sleep and stopping Thermitts from melting, Nelly's monster-sitting adventures continue to be full of surprises!

Grerks, Squurms and Water Greeps

by Kes Gray

Published 4 January 2005
Whether she's trying to keep Slop the squurm entertained, playing bat and ball with real bats, or doing a bit of DIY for a family of Grerks, Nelly's monster sitting is always an adventure!

The Huffaluks

by Kes Gray

Published 4 October 2012

Nelly is as busy as ever monster-sitting strange and unusual monster babies. With inviting Huffaluks to her birthday barbeque, struggling to frighten Muggots to sleep and stopping Thermitts from melting, Nelly's monster-sitting adventures continue to be full of surprises!

It's Nelly's twelfth birthday, and she's invited the huffaluks round for a party. But Nelly's sisters Asti is not happy, and is determined to cause trouble.


The Polabores

by Kes Gray

Published 4 October 2012

Nelly's monster sitting adventures are always full of surprises. She certainly can't believe it when she sits a monster who wants to do absolutely nothing! Or when she has to rescue the smallest monster she's encountered yet - but nothing can prepare her for spending Christmas Day with the Dendrilegs!

The polarbores like to do absolutely nothing, so Nelly is in for a dull night. But when she invites Asti round to liven things up, she wishes her evening was a little less eventful...


The Thermitts

by Kes Gray

Published 4 October 2012

Nelly is as busy as ever monster-sitting strange and unusual monster babies. With inviting Huffaluks to her birthday barbeque, struggling to frighten Muggots to sleep and stopping Thermitts from melting, Nelly's monster-sitting adventures continue to be full of surprises!

It has to be zero degrees or below for the thermits or they'll melt, so monster sitting during a heat wave is going to be a challenge for Nelly...


The Dendrilegs

by Kes Gray

Published 4 October 2012

Nelly's monster sitting adventures are always full of surprises. She certainly can't believe it when she sits a monster who wants to do absolutely nothing! Or when she has to rescue the smallest monster she's encountered yet - but nothing can prepare her for spending Christmas Day with the Dendrilegs!

Nelly knows she's in for an interesting Christmas at the Dendrilegs, when she's greeted at the door by a flurry of purple tentacles. But It's not Father Christmas who'll be coming down the chimney...


The Muggots

by Kes Gray

Published 4 October 2012

Nelly is as busy as ever monster-sitting strange and unusual monster babies. With inviting Huffaluks to her birthday barbeque, struggling to frighten Muggots to sleep and stopping Thermitts from melting, Nelly's monster-sitting adventures continue to be full of surprises!

The Muggots need scaring to get to sleep but nothing frightens them anymore. Its Nelly's job to spook the giant spiders, without getting scared herself!


The Digdiggs

by Kes Gray

Published 4 October 2012

Nelly's monster sitting adventures are always full of surprises. She certainly can't believe it when she sits a monster who wants to do absolutely nothing! Or when she has to rescue the smallest monster she's encountered yet - but nothing can prepare her for spending Christmas Day with the Dendrilegs!

The digdiggs are the smallest monsters Nelly has ever seen, and there are one hundred and twenty three of them! Nelly is going to have her work cut out for her if she's going to look after them all...


The Ultravores

by Kes Gray

Published 4 October 2012

Nelly's monster sitting adventures are always full of surprises. Things just seem to get stickier and stickier when she monster sits for the Ultravores but it doesn't compare to how lost for words she is at the Rimes. And with even more fighting with Asti to add to the mix, her time with the Wattwatts is shocking to say the least!

Flies are on the menu for dinner tonight in the Ultravore home. Little does Nelly know that she might be too...


The Rimes

by Kes Gray

Published 4 October 2012

Nelly's monster sitting adventures are always full of surprises. Things just seem to get stickier and stickier when she monster sits for the Ultravores but it doesn't compare to how lost for words she is at the Rimes. And with even more fighting with Asti to add to the mix, her time with the Wattwatts is shocking to say the least!

Nelly finds herself a little lost for words at the Rimes, and she'll need to find them fast if she's to save baby Shimma.


The Wattwatts

by Kes Gray

Published 4 October 2012

Nelly's monster sitting adventures are always full of surprises. Things just seem to get stickier and stickier when she monster sits for the Ultravores but it doesn't compare to how lost for words she is at the Rimes. And with even more fighting with Asti to add to the mix, her time with the Wattwatts is shocking to say the least!

Nelly's in for a shocking time with the wattwatts, as this time it's not her looking after the monsters, it's the monsters looking after her...


The Squurms at No. 322

by Kes Gray

Published 18 April 2019

Nelly isn't scared of monsters. In fact, she babysits for them. From the bestselling author of the OI FROG! and DAISY books comes this hilarious, action-packed series for fans of THE BOLDS and BARRY LOSER.

'If monsters are real, how come I've never seen one?'
'Because they never go out.'
'Why don't monsters ever go out?'
'Because they can never get a babysitter.'


Ever played hide and seek with an oozy orange Squurm, or ice-skated with a baby Thermitt? Every time Nelly rings on a new monster family's doorbell she's up for a new challenge. Come on her monster-sitting adventures in this laugh-out-loud funny second book in the NELLY THE MONSTER SITTER series.

Kes Gray is one of the Independent's top ten children's authors, and winner of the Red House Children's Book Award.

This story now comes with brand-new illustrations; it was previously published in a collection entitled: Grerks, Squurms & Water Greeps.


The Grerks at No. 55

by Kes Gray

Published 9 August 2018

Nelly isn't scared of monsters. In fact, she babysits for them. From the bestselling author of the OI FROG! and DAISY books comes this hilarious, action-packed series for fans of THE BOLDS and BARRY LOSER.

'If monsters are real, how come I've never seen one?'
'Because they never go out.'
'Why don't monsters ever go out?'
'Because they can never get a babysitter.'


Ever played catch with a six-legged Gog, or made pancakes with an oozy orange Squurm? Every time Nelly rings on a new monster family's doorbell she's up for a new challenge. Come on her monster-sitting adventures in this laugh-out-loud funny first book in the NELLY THE MONSTER SITTER series.

Kes Gray is one of the Independent's top ten children's authors, and winner of the Red House Children's Book Award.

This story now comes with brand-new illustrations; it was previously published in a collection entitled: Grerks, Squurms & Water Greeps.


Nelly's monster sitting adventures are always full of surprises. Things just seem to get stickier and stickier when she monster sits for the Ultravores but it doesn't compare to how lost for words she is at the Rimes. And with even more fighting with Asti to add to the mix, her time with the Wattwatts is shocking to say the least!

Nelly's phone is still ringing with lots more monster sitting requests - and each one is full of strange surprises! From helping Altigators face their fears, battling venomous Tooth Furries, to taking care of Pipplewak eggs - Nelly's monster-sitting adventures are as unpredictable and exciting as ever!

The Water Greeps

by Kes Gray

Published 4 October 2012

Ever played fetch with a four-eyed Grerk or made pancakes with a giant orange squurm? Nelly isn't scared of monsters. In fact she babysits for them. Every night, Nelly the monster sitter looks after a new friend, but its never easy...

Nelly can't believe her luck when she finds out that the Water Greeps live in an underwater penthouse. The only problem is Water Greeps are mischievous monsters, and Nelly is going to have to get a bit wet!


The Altigators

by Kes Gray

Published 4 October 2012

Nelly's phone is still ringing with lots more monster sitting requests - and each one is full of strange surprises! From helping Altigators face their fears, battling venomous Tooth Furries, to taking care of Pipplewak eggs - Nelly's monster-sitting adventures are as unpredictable and exciting as ever!

Nelly is monster sitting for Altigators, toweringly tall reptilian monsters. Or at least she's trying to. For some reason Altigator parents Soar and Rise have trouble leaving their apartment for any longer than three minutes!


The Squurms

by Kes Gray

Published 4 October 2012

Ever played fetch with a four-eyed Grerk or made pancakes with a giant orange squurm? Nelly isn't scared of monsters. In fact she babysits for them. Every night, Nelly the monster sitter looks after a new friend, but its never easy...

Slop, the five and a bite year old Squurm, has innumerable Spaghetti-like feelers, two brains and six eyes. He's a practical joker, hates loosing and gets bored very, very easily. Nelly has got her work cut out!


The Cowcumbers

by Kes Gray

Published 4 October 2012

Nelly's phone is still ringing with lots more monster sitting requests - and each one is full of strange surprises! From helping Altigators face their fears, battling venomous Tooth Furries, to taking care of Pipplewak eggs - Nelly's monster-sitting adventures are as unpredictable and exciting as ever!

Nelly has monster sat for the Cowcumbers before. But this time petal has a loose tooth, and there'll be trouble if the tooth furry comes.