Here are all three verses of the "Lortl Song", transcribed from the aforementioned BBC pamphlet:-

1. Around my father's garden the Lortls are at play,
And everyone who sees them says "Oh how sweet are they!"
But little do they know that they're out to have some fun,
"Come into the garden, See if we can trick someone.
Come into the garden, Hurry, everyone!"

2. When you go in the garden Upon the path you tread;
But Lortls much prefer dancing On the flower bed.
(The worms get rather anxious And wriggle underground).
"Come into the garden, Blow that pile of leaves around.
Come into the garden, no-one make a sound!"

3. A Lortl is a creature with big ears and a grin,
But he's the one behind you if you slip on a skin.
You may not all believe me, but what I say is true.
"Come into the garden, I've a secret word for you.
Come into the garden - I'm a Lortl too!"